{"title":"Natural Star Sapphires - Asterism Cabochon Loose Stones","description":"\u003cp\u003eStar sapphire is one of the most extraordinary phenomena in the gemstone world — a star of light that glides across the surface of a cabochon-cut corundum when illuminated by a single point light source. The star is created by dense, precisely aligned rutile silk (microscopic titanium dioxide needles) inside the crystal, reflecting light in three directions that intersect at 60° angles to form the star.\u003c\/p\u003e\n\n\u003ch2\u003eWhy our star sapphires\u003c\/h2\u003e\n\n\u003cp\u003eOur star sapphires are sourced from Sri Lanka, the origin of the famous Star of India (563 carats, now in the American Museum of Natural History) and the Star of Lanka (193 carats). Each stone here carries its own GIA report, and each stone's page states that stone's treatment finding in the report's own words rather than inferring anything from the star.\u003c\/p\u003e\n\n\u003ch2\u003eWhat a report says about a star sapphire, and what it does not\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe star itself.\u003c\/strong\u003e A GIA colored-stone report records asterism as an observation: the phenomenon field reads \u003cem\u003eDisplaying Asterism\u003c\/em\u003e. GIA states that it does not grade or provide quality analysis for sapphire or other colored stones, and no laboratory publishes a grading scheme for a star. So there is no laboratory grade for a star, and we do not publish an opinion of our own in place of one. Put the stone under one direct light source, tilt it, and judge it yourself — ask us for more photographs and video and we will send them.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBody color.\u003c\/strong\u003e Star sapphires occur in blue, gray, black, purple, violet, pink, yellow and white. The color on a stone's report is the laboratory's own color description of that stone; anything we add about color is our description and not the laboratory's.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTransparency.\u003c\/strong\u003e Star sapphires run from transparent to opaque. A GIA report prints the transparency it observed as a field value, and that field value is what each stone's page carries. We do not rank one transparency above another.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCabochon shape.\u003c\/strong\u003e Star stones are cut as cabochons (a smooth, domed surface) rather than faceted, because the dome is the surface on which the reflections from the silk form a star instead of being broken up by facets. Dome height changes how the star reads, and it is one of the things to look at in the photographs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNatural vs. synthetic.\u003c\/strong\u003e Synthetic star sapphires (often called Linde or Lindy stars) are common and inexpensive. Whether a stone is natural or synthetic is answered by a report field rather than by eye: a GIA report names the species and the variety of the material it examined, and each stone's page prints what its own report says. See \u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-tell-if-star-sapphire-is-natural\"\u003eHow to Tell If a Star Sapphire Is Natural\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eHeat, silk and the star\u003c\/h2\u003e\n\n\u003cp\u003eThe star exists because of rutile silk. In faceted sapphires, heat treatment is used to dissolve that silk: above roughly 1,400°C it returns to the corundum lattice, releasing titanium to pair with iron and deepen blue color, and dissolving the silk takes the star with it. But heat does not run in one direction only. GIA publishes that heating can also recrystallize silk and make it more prominent, which lets a stone show a stronger star, and that titanium diffusion is used to create stars in sapphire. A visible star is therefore not evidence about a stone's treatment history in either direction. What a laboratory found is on that stone's own report, and each stone's page prints what its report says. For the full science, see \u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-sapphire-heat-treatment-works\"\u003eHow Sapphire Heat Treatment Works\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eLearn about star sapphires\u003c\/h2\u003e\n\n\u003ch3\u003eStar sapphire buying guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Complete Buyer's Guide\u003c\/a\u003e — the definitive resource\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-tell-if-star-sapphire-is-natural\"\u003eHow to Tell If a Star Sapphire Is Natural\u003c\/a\u003e — spotting synthetics and fakes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eUltimate Sapphire Buying Guide\u003c\/a\u003e — the central hub for all sapphire education\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-pricing-explained\"\u003eSapphire Pricing Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/interactive-sapphire-color-chart\"\u003eInteractive Sapphire Color Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe science behind the star\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-read-sapphire-inclusions\"\u003eHow to Read Sapphire Inclusions\u003c\/a\u003e — rutile silk, the inclusion that creates asterism\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eWhat Is an Unheated Sapphire?\u003c\/a\u003e — why heat and asterism work against each other\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-sapphire-heat-treatment-works\"\u003eHow Sapphire Heat Treatment Works\u003c\/a\u003e — the silk dissolution process\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-colors-explained\"\u003eSapphire Colors Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-gems-are-formed-nature-s-incredible-underground-process\"\u003eHow Gemstones Are Formed\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngagement rings and custom jewelry\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-choose-sapphire-engagement-ring\"\u003eHow to Choose a Sapphire for Your Engagement Ring\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eHow to Commission a Custom Ring\u003c\/a\u003e — we prefer a bezel or another protective setting for a star cabochon, and that is our preference rather than a line from any report\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-care-for-a-sapphire-engagement-ring-cleaning-storage-and-what-to-avoid\"\u003eHow to Care for a Sapphire Ring\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReports and trust\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eHow to Read a GIA Sapphire Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/beryllium-diffusion-sapphires-explained\"\u003eBeryllium Diffusion Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOrigin and sourcing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/ceylon-sapphire-complete-guide\"\u003eCeylon Sapphire Complete Guide\u003c\/a\u003e — sapphire from Sri Lanka, and what an origin opinion on a report does and does not say\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/ratnapura-gem-market-how-sapphires-are-traded\"\u003eThe Ratnapura Gem Market\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/art-of-pit-mining-gemstones-sri-lanka\"\u003ePit Mining in Sri Lanka\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/madagascar-sapphire-guide\"\u003eMadagascar Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComparisons\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-vs-diamond-engagement-rings-the-real-differences-and-how-to-choose-the-right-sapphire\"\u003eSapphire vs. Diamond\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-vs-spinel-collectors-guide\"\u003eSapphire vs. Spinel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-vs-moissanite-vs-lab-diamond\"\u003eSapphire vs. Moissanite vs. Lab Diamond\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/cats-eye-chrysoberyl-buyers-guide\"\u003eCat's Eye Chrysoberyl Guide\u003c\/a\u003e — another phenomenon stone from Sri Lanka\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eHave a question about a specific star sapphire? Email \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e. We can send additional photos and video showing the star under a direct light source. 14-day return on every order. Free US shipping; international shipping via FedEx and UPS.\u003c\/p\u003e","products":[{"product_id":"3-40-ct-oval-violet-star-sapphire-unheated-gia","title":"3.40 ct Natural Unheated Violet Star Sapphire – Oval | GIA Certified","description":"\u003cp\u003e3.40 carat violet star sapphire, measuring 8.64 × 6.76 × 5.69 mm. GIA report 1236950499 gives the species as Natural Corundum and the variety as Natural Star Sapphire, the shape as Oval and the cutting style as Double Cabochon, the color as Violet, the transparency as Translucent, the phenomenon as Displaying Asterism, and Additional Results as No Indications of Heating.\u003c\/p\u003e\n\n\u003cp\u003eGIA report 1236950499 records the geographic origin field as Not Requested. Sri Lanka is Crescent Gems' own sourcing record. It is not a GIA determination.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2\u003e\u003cspan role=\"text\" style=\"color: #4a235a\"\u003e\u003cstrong\u003eExpert Opinion\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\"GIA's report gives the color as Violet and the phenomenon as Displaying Asterism, and those are the words I am going to use for it. I am not going to grade the stone for you, because any adjective I added would be mine rather than the report's. Look at the images and the video, and ask me anything the report does not answer.\" — Ahmed Shareek\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eAsterism — the Mechanism\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eAsterism is produced by light reflecting from microscopic rutile needle inclusions aligned along the crystal's growth directions, which is the mechanism GIA describes for asteriated corundum. GIA prints the phenomenon on this report as Displaying Asterism.\u003c\/p\u003e\n\u003cp\u003eGIA does not grade or provide quality analysis for colored stones, so there is no laboratory grade on this report for the stone's star, its clarity or its color intensity. Anything on this page about how the stone looks is Crescent Gems' own expression rather than a laboratory finding.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWe suggest watching the video as well as looking at the stills.\u003c\/li\u003e\n\u003cli\u003eTry before you buy: we would rather you saw the stone yourself before deciding, so reach out with any questions about viewing conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire — The Complete Buyer's Guide to the Phenomenon Gemstone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-tell-if-star-sapphire-is-natural\"\u003eHow to Tell If a Star Sapphire Is Natural: A Complete Identification Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/violet-sapphires-the-rare-beauty-of-royal-purple-elegance\"\u003eViolet Sapphire — The Complete Buyer's Guide to Color, Origin, and Value\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eWhat Is a GIA Sapphire Report and How Do You Read One?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Sapphire Rings — The Complete Guide to Designing Your Own\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eThe Ultimate Guide to Buying Natural Loose Sapphires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eWhat Is an Unheated Sapphire? The Complete Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8293\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e3.40 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Corundum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eVariety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Star Sapphire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDouble Cabochon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e8.64 × 6.76 × 5.69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eViolet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTranslucent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDisplaying Asterism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eAdditional Results\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNo Indications of Heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eGeographic Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNot Requested (GIA report 1236950499)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Report #1236950499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eSKU: CG8293\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 3.40 carats\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Star Sapphire\u003c\/li\u003e\n\u003cli\u003eShape: Oval\u003c\/li\u003e\n\u003cli\u003eCutting Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eDimensions: 8.64 × 6.76 × 5.69 mm\u003c\/li\u003e\n\u003cli\u003eColor: Violet\u003c\/li\u003e\n\u003cli\u003eTransparency: Translucent\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Displaying Asterism\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Not Requested (GIA report 1236950499)\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #1236950499\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eWe clean loose stones like this one with lukewarm water, mild soap and a soft brush.\u003c\/li\u003e\n\u003cli\u003eWe store them separately so surfaces do not rub against each other.\u003c\/li\u003e\n\u003cli\u003eWe suggest removing a set stone before heavy physical activity.\u003c\/li\u003e\n\u003cli\u003eWe prefer not to use ultrasonic or steam cleaners on a cabochon-cut, inclusion-bearing stone. That preference is Crescent Gems' own and is not guidance drawn from the laboratory report.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eWhat's included with this Violet Star Sapphire\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGIA Report #1236950499\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665945923651,"sku":"CG8293","price":2380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8293_image-1.jpg?v=1778308923"},{"product_id":"pink-oval-ceylon-sapphire-27","title":"3.26 ct Natural Pink Star Sapphire - Oval, Double Cabochon | Unheated | GIA Certified | Sri Lanka","description":"\u003cp\u003eA natural 3.26 carat star sapphire, shape Oval, cutting style Double Cabochon, documented on GIA Sapphire Origin Report #2235836233, dated 21 January 2026. The report records species Natural Corundum, variety Natural Star Sapphire, a weight of 3.26 carats, measurements of 8.66 x 7.95 x 5.15 mm, color Purplish Pink and transparency Transparent; its Phenomenon field prints Displaying Asterism. Under Additional Results the report prints No Indications of Heating. Its Geographic Origin field reads Sri Lanka, and the comment the report prints about an origin statement is quoted in full below.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/en-nz\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"A 3.26 carat oval double cabochon that carries a GIA origin opinion is what I was buying here. Almost everything on this page is the report's. The report's: species Natural Corundum, variety Natural Star Sapphire, shape Oval, cutting style Double Cabochon, color Purplish Pink, Displaying Asterism in the Phenomenon field, No Indications of Heating under Additional Results, and Sri Lanka in the Geographic Origin field as GIA's expert opinion, which is how GIA itself describes it on the paper. What is mine is the decision to stop where the report stops. GIA does not grade colored stones, so I do not describe the quality of the star, and I would rather you looked at the stone than read my adjectives.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat GIA Sapphire Origin Report #2235836233 Records\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe document's own printed header reads Sapphire Origin Report. GIA's published service catalogue describes this class of service as \"An Identification Report, with geographic origin added\". Of what a colored-stone report does, GIA publishes that it will \"assess the characteristics of a stone (weight, measurements, shape, cutting style and color)\", \"determine if it is natural or laboratory-grown\" and \"indicate detectable treatments\". This report does all of that and adds the origin opinion. It carries no color grade, no clarity grade and no grade for the star.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eThe Star\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe Phenomenon field of GIA Sapphire Origin Report #2235836233 prints Displaying Asterism. That field is an identification field, in the same family as Species and Variety: it records that the laboratory observed the stone displaying asterism. The report's Variety field states the same observation as a variety name, Natural Star Sapphire.\u003c\/p\u003e\n\n\u003cp\u003eGIA publishes the mechanism. \"The star effect is called asterism. It's caused by reflections from tiny, needle-like inclusions that are oriented in several specific directions.\" In its own journal GIA names the inclusion species as rutile, in needle form, and states that \"The bright lines of different orientations intersect at a single point to form a star only when the needle directions lie in the same plane.\" GIA also publishes why a star stone is domed rather than faceted: \"Star corundum must be cut as a cabochon to display asterism\", and \"The cabochon-cut surface of the stone acts as a convex lens, which focuses the scattered light from multitudes of needles inside the crystal into a bright line.\" Those are GIA's published statements about how asterism works. They are not findings about this stone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat nobody grades.\u003c\/strong\u003e GIA states that \"GIA doesn't grade or provide quality analysis for sapphire\", and GIA publishes no grade for a star. So this page states nothing about the quality of the star, in its prose, in its specification table or in its structured data. The report's authority stops at Displaying Asterism, and this page stops there too.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow the star is seen.\u003c\/strong\u003e GIA's own guidance on photographing gems states that \"Direct lighting ... is also sometimes used to bring out gemstone phenomena such as asterism (a star effect) or chatoyancy (a cat's eye effect).\" Ask us for more images, or use the Try Before You Buy option, and look at the stone yourself under the light you intend to use.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhere This Star Sapphire Comes From\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe Geographic Origin field of GIA Sapphire Origin Report #2235836233 reads Sri Lanka. GIA's report places the geographic origin of this stone in Sri Lanka. The report prints, under Comments, what that statement is:\u003c\/p\u003e\n\n\u003cblockquote style=\"border-left: 3px solid #5b2c6f; margin: 16px 0; padding: 4px 16px; font-style: italic;\"\u003e\"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\"\u003c\/blockquote\u003e\n\n\u003cp\u003eThat sentence is GIA's own and it is printed on the paper that comes with the stone. It is why this page states the origin as GIA's expert opinion, in GIA's own words, and adds nothing to it.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the shape field and the cutting-style field separately.\u003c\/strong\u003e The report prints shape Oval and cutting style Double Cabochon. Shape is the face-up outline; cutting style is how the surfaces are finished. GIA defines a double cabochon as having \"both a rounded top and bottom\", against a simple cabochon's \"rounded top and flat bottom\". Two fields, two separate findings: this page names each field with the report's own value, shape Oval and cutting style Double Cabochon, and keeps the report's word Double.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the origin line as GIA writes it.\u003c\/strong\u003e The report gives Sri Lanka and prints, in the same document, that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data. That is the strongest thing this page can say about where the stone came from, and it is said in GIA's words.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderstand what Mohs 9 does and does not tell you.\u003c\/strong\u003e Mohs measures resistance to scratching and abrasion only. Toughness is the separate property that describes how a stone resists chipping and breaking; this report prints it as \"Excellent\", and GIA publishes no defined toughness scale, so the report's word is quoted as printed and is not ranked inside one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a setting with the depth in mind.\u003c\/strong\u003e For a ring we recommend a mounting that shields the girdle edge of a domed stone, and the 5.15 mm depth on the report is worth showing to your jeweller before a design is settled. That recommendation is Crescent Gems' own: GIA publishes no setting guidance for sapphire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the report against the stone.\u003c\/strong\u003e Read the weight and the measurements off the report and match them to the stone in front of you before finalizing any loose gemstone purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand, under your own lighting, before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/pink-sapphire-buyers-guide\"\u003ePink Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8288\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e3.26 ct - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Corundum \/ Natural Star Sapphire - both as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDouble Cabochon - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e8.66 x 7.95 x 5.15 mm - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003ePurplish Pink - as printed on the GIA report (GIA colored-stone reports carry no color grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDisplaying Asterism - as printed on the GIA report. GIA does not grade star quality, so no statement about the star's quality is made on this page.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eAdditional Results\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNo Indications of Heating - as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eGeographic Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka - GIA's expert opinion, as the report itself states\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eReport Comment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e\"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\" - printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eGIA colored-stone reports carry no clarity grade, and Crescent Gems states none for this stone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs) - as printed on the GIA report. Mohs measures resistance to scratching and abrasion only.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eToughness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e\"Excellent\" - as printed on the GIA report. GIA publishes no defined toughness scale, so the report's word is quoted as printed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eBirthstone\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSeptember - as printed in the Characteristics panel of the GIA report, and given to SAPPHIRE the variety, not to corundum the species\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eLaboratory Report\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Sapphire Origin Report #2235836233, 21 January 2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 3.26 ct Pink Star Sapphire, Oval Double Cabochon?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe GIA report records the identification, the measurements, the phenomenon, the heating finding and the origin opinion: Natural Corundum, variety Natural Star Sapphire, 3.26 carats, 8.66 x 7.95 x 5.15 mm, shape Oval, cutting style Double Cabochon, color Purplish Pink, transparency Transparent, Displaying Asterism in the Phenomenon field, No Indications of Heating under Additional Results, and Sri Lanka in the Geographic Origin field as GIA's expert opinion. That is the whole of what the report records.\u003c\/p\u003e\n\n\u003cp\u003eWhat is not on the report is said so on this page. A GIA colored-stone or origin report carries no color grade and no clarity grade, and GIA does not grade colored stones at all, so there is no grade for the star either: nothing on this page describes the quality of the star. The price per carat is our arithmetic on our own asking price, not a report field. The uses suggested at the foot of the page are ours.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Points of this Natural Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Sapphire Origin Report #2235836233\u003c\/strong\u003e\u003cbr\u003eDated 21 January 2026. Records species, variety, weight, measurements, shape, cutting style, color, transparency, the phenomenon, the heating finding and an opinion on geographic origin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies Natural Corundum, Variety Natural Star Sapphire\u003c\/strong\u003e\u003cbr\u003eBoth as printed on the report. The report prints the word Natural in each of the two fields.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenomenon: Displaying Asterism\u003c\/strong\u003e\u003cbr\u003eAs printed on the report. GIA does not grade star quality, so no statement about the star's quality is made on this page.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Results: No Indications of Heating\u003c\/strong\u003e\u003cbr\u003eAs printed on the report, in the report's own wording.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeographic Origin: Sri Lanka\u003c\/strong\u003e\u003cbr\u003eGIA's expert opinion, and the report prints that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.26 Carats, 8.66 x 7.95 x 5.15 mm\u003c\/strong\u003e\u003cbr\u003eThe weight and measurements printed on the report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape Oval, Cutting Style Double Cabochon\u003c\/strong\u003e\u003cbr\u003eTwo separate fields on the report, making two separate statements, named separately here.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Purplish Pink, Transparency Transparent\u003c\/strong\u003e\u003cbr\u003eBoth as printed on the report. A GIA colored-stone report carries no color grade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs 9, Toughness \"Excellent\"\u003c\/strong\u003e\u003cbr\u003eFrom the report's Characteristics panel. Mohs measures resistance to scratching; toughness is the separate property that describes how a stone resists chipping and breaking. GIA publishes no defined toughness scale, so the report's word is quoted as printed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeptember Birthstone of SAPPHIRE the Variety\u003c\/strong\u003e\u003cbr\u003eThe report's Characteristics panel prints Birthstone: September. September is given to sapphire the variety, not to corundum the species.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 3.26 Carats\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Star Sapphire\u003c\/li\u003e\n\u003cli\u003eDimensions: 8.66 x 7.95 x 5.15 mm (as printed on the GIA report)\u003c\/li\u003e\n\u003cli\u003eShape: Oval\u003c\/li\u003e\n\u003cli\u003eCutting Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eColor: Purplish Pink - as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent - as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Displaying Asterism - as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating - as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Sri Lanka - GIA's expert opinion on the report\u003c\/li\u003e\n\u003cli\u003eClarity: GIA colored-stone reports carry no clarity grade, and Crescent Gems states none\u003c\/li\u003e\n\u003cli\u003eLaboratory Report: GIA (Gemological Institute of America), Sapphire Origin Report #2235836233, 21 January 2026\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale - scratch and abrasion resistance only\u003c\/li\u003e\n\u003cli\u003eToughness: \"Excellent\" as printed on the report - GIA publishes no defined toughness scale, so the report's word is quoted as printed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eThis Particular Stone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a natural gemstone: the report prints Natural Corundum and Natural Star Sapphire. Once it is sold it cannot be reordered or reproduced.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare of this 3.26 ct Pink Star Sapphire, Oval Double Cabochon\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eGIA publishes care guidance for sapphire, and it states that warm, soapy water is always safe. GIA's guidance on ultrasonic and steam cleaners is conditional on the stone, and this page does not reproduce those conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat we prefer, which is ours and not GIA's.\u003c\/strong\u003e We clean a stone like this one with warm soapy water and a soft brush, and we would not put a cabochon we did not set through an ultrasonic or a steam cleaner, because we cannot see how it is held. That is Crescent Gems' own preference and not a warning from the report. GIA publishes nothing about care for cabochons, for star stones or for inclusion-rich corundum, so there is no GIA position on any of those for this page to attribute.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eWarm soapy water and a soft brush - GIA states that warm, soapy water is always safe for sapphire\u003c\/li\u003e\n\u003cli\u003eTell your jeweller the stone is a domed cabochon before any cleaning, setting or repair work - our request, not GIA's\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity, sports or manual work - our preference, not GIA's\u003c\/li\u003e\n\u003cli\u003eStore separately from other jewelry to protect the polished dome from scratching - our preference, not GIA's; the Mohs figure the report prints measures scratch and abrasion resistance only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eUses for this 3.26 ct Pink Star Sapphire, Oval Double Cabochon\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCenter stone for a pendant\u003c\/li\u003e\n\u003cli\u003eCenter stone for a ring\u003c\/li\u003e\n\u003cli\u003eEarring pair center stone\u003c\/li\u003e\n\u003cli\u003eCustom jewelry commission\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese are uses we suggest, not a line from the GIA report.\u003c\/p\u003e\n\n\u003cp\u003eFree US shipping; Try-On available.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eItem #: CG8288 | GIA Report #: 2235836233\u003c\/em\u003e\u003c\/p\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665946021955,"sku":"CG8288","price":2834.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8288_image-1.jpg?v=1778308921"},{"product_id":"8-09-ct-blue-ceylon-star-sapphire-unheated","title":"8.09 ct Blue Star Sapphire – Oval, Double Cabochon | Unheated | Sri Lanka | GIA Report #2233980218","description":"\u003cp\u003eAn 8.09 ct blue star sapphire, Shape Oval and Cutting Style Double Cabochon, accompanied by its GIA Sapphire Origin Report #2233980218. The report records the Species as Natural Corundum and the Variety as Natural Star Sapphire, the Color as Blue, the Transparency as Translucent, the Phenomenon as Displaying Asterism, and under Additional Results No Indications of Heating.\u003c\/p\u003e\n\u003cp\u003eGIA's report places the geographic origin of this stone in Sri Lanka. The report's Comments read: \"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\"\u003c\/p\u003e\n\u003cp\u003eThe name sapphire refers to every color of the mineral corundum except red, and blue is the color the unmodified word denotes. The Color field on this report reads Blue.\u003c\/p\u003e\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/en-nz\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"Looking at this stone in the hand myself, I sometimes read a grey cast in the blue — that is my own eye and not a grade, and GIA's report records the color as Blue.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat the GIA Report Records\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies and Variety:\u003c\/strong\u003e Natural Corundum, Natural Star Sapphire. These are the report's own printed field values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenomenon:\u003c\/strong\u003e Displaying Asterism. That entry records that GIA observed asterism. No laboratory issues a quality grade for a star, and this report carries none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape and Cutting Style:\u003c\/strong\u003e Oval, and Double Cabochon. The report carries these as two separate fields and so do we.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeographic Origin:\u003c\/strong\u003e Sri Lanka, qualified by the printed Comments quoted above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Results:\u003c\/strong\u003e No Indications of Heating. We quote that entry in the document's own words, and we do not go beyond it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight and measurements:\u003c\/strong\u003e 8.09 carats; 12.84 x 10.37 x 5.96 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the report yourself:\u003c\/strong\u003e the number is 2233980218 and it can be looked up in GIA's own Report Check service. We publish a scan on this page and will email the full-resolution file on request.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat no laboratory grades:\u003c\/strong\u003e no laboratory issues a quality grade for a star, and GIA issues no color grade and no cut grade for colored stones. Nothing of that kind appears on this report, and nothing of that kind is asserted on this page. What the report carries is the field values listed above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e the Clarity entry in our own table reads Not applicable. That is our entry, not GIA's; the report carries no clarity field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeing the asterism:\u003c\/strong\u003e it is a directional effect. To see it, hold the stone under a single concentrated light source. Our Try-On service and additional images on request are both there for that, and we would rather you looked than took our word for it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-tell-if-star-sapphire-is-natural\"\u003eHow to Tell If a Star Sapphire Is Natural\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/blue-sapphire-buyers-guide\"\u003eBlue Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Sapphire Report Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/pages\/ceylon-sapphire-origin-guide\"\u003eSri Lanka Sapphire Origin Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Sapphire Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/best-sapphires-under-10000\"\u003eSapphires Under $10,000\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px 4px; border-bottom: 1px solid #e5d9ee; font-weight: 700; color: #4a235a;\" colspan=\"2\"\u003eAs recorded on GIA Sapphire Origin Report #2233980218\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e8.09 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e12.84 x 10.37 x 5.96 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDouble Cabochon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTranslucent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDisplaying Asterism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Corundum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eVariety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Star Sapphire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eGeographic Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eAdditional Results\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNo Indications of Heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px 4px; border-bottom: 1px solid #e5d9ee; font-weight: 700; color: #4a235a;\" colspan=\"2\"\u003eCorundum species characteristics, not findings about this stone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs), a measure of scratch resistance only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eLustre\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eVitreous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px 4px; border-bottom: 1px solid #e5d9ee; font-weight: 700; color: #4a235a;\" colspan=\"2\"\u003eCrescent Gems record\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNot applicable (our own entry; the report carries no clarity field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eLaboratory Report\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eGIA Sapphire Origin Report #2233980218\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 8.09 ct Blue Star Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause every statement on this page can be checked against one document that travels with the stone. The GIA Sapphire Origin Report #2233980218 carries the weight, the measurements, the shape and cutting style, the color, the transparency, the phenomenon, the species and variety, the geographic origin and the Additional Results entry No Indications of Heating. Where our own table adds an entry of our own, it says so.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIts own laboratory report\u003c\/strong\u003e\u003cbr\u003eGIA Sapphire Origin Report #2233980218, issued 01 July 2026, supplied with the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Results: No Indications of Heating\u003c\/strong\u003e\u003cbr\u003eThe report's own entry, in the report's own words.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeographic Origin: Sri Lanka\u003c\/strong\u003e\u003cbr\u003eQualified by the printed Comments: \"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.09 carats, 12.84 x 10.37 x 5.96 mm\u003c\/strong\u003e\u003cbr\u003eStated as field values from the report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness: 9 on the Mohs scale\u003c\/strong\u003e\u003cbr\u003eA characteristic of corundum the species, and a measure of scratch resistance only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 8.09 Carats\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Star Sapphire\u003c\/li\u003e\n\u003cli\u003eDimensions: 12.84 x 10.37 x 5.96 mm (per GIA report)\u003c\/li\u003e\n\u003cli\u003eShape: Oval\u003c\/li\u003e\n\u003cli\u003eCutting Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eColor: Blue\u003c\/li\u003e\n\u003cli\u003eTransparency: Translucent\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Displaying Asterism\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Sri Lanka\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating\u003c\/li\u003e\n\u003cli\u003eLaboratory Report: GIA (Gemological Institute of America), Sapphire Origin Report #2233980218\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale (corundum species)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCare of this Blue Star Sapphire\u003c\/h2\u003e\n\u003cp\u003eWe prefer not to put a stone we did not set into an ultrasonic or steam cleaner, because we cannot see how it is held. That is our preference, not a warning from the report.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWarm water, a mild soap and a soft brush\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity, sports, or manual work\u003c\/li\u003e\n\u003cli\u003eStore separately from other jewelry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Customers Love This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne document, independently issued:\u003c\/strong\u003e GIA Sapphire Origin Report #2233980218.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField values, not adjectives:\u003c\/strong\u003e every entry in the table above is either printed on the report or marked as ours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou can look before you buy:\u003c\/strong\u003e Try-On service, and further images whenever you ask for them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNothing claimed that no one grades:\u003c\/strong\u003e we assert no star grade and no color grade, because no laboratory issues either. The Clarity entry in our table is our own and is marked as ours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 8.09 ct Blue Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet in a pendant\u003c\/li\u003e\n\u003cli\u003eSet in a ring\u003c\/li\u003e\n\u003cli\u003eBespoke commission from a loose stone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFree US shipping; Try-On available.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eItem #: CG8440 | GIA Report #: 2233980218\u003c\/em\u003e\u003c\/p\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43174339543107,"sku":"CG8440","price":4040.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8440_image-1.jpg?v=1779989747"},{"product_id":"7-99-ct-round-purple-star-sapphire-unheated","title":"7.99 ct Natural Purple Star Sapphire - Round, Double Cabochon | Unheated | GIA Certified | Sri Lanka","description":"\u003cp\u003eA natural 7.99 carat star sapphire, shape Round, cutting style Double Cabochon, documented on GIA Sapphire Origin Report #5232980224, dated 1 July 2026. The report records species Natural Corundum, variety Natural Star Sapphire, a weight of 7.99 carats, measurements of 10.87 - 11.06 x 6.63 mm, color Purple and transparency Transparent to Translucent; its Phenomenon field prints Displaying Asterism. Under Additional Results the report prints No Indications of Heating. Its Geographic Origin field reads Sri Lanka, and the comment the report prints about an origin statement is quoted in full below.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/en-nz\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"A 7.99 carat double cabochon that carries a GIA origin opinion is what I was buying here. Almost everything on this page is the report's. The report's: species Natural Corundum, variety Natural Star Sapphire, shape Round, cutting style Double Cabochon, Displaying Asterism in the Phenomenon field, No Indications of Heating under Additional Results, and Sri Lanka in the Geographic Origin field as GIA's expert opinion, which is how GIA itself describes it on the paper. What is mine is the decision to stop where the report stops. GIA does not grade colored stones, so I do not describe the quality of the star, and I would rather you looked at the stone than read my adjectives.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat GIA Sapphire Origin Report #5232980224 Records\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe document's own printed header reads Sapphire Origin Report. GIA's published service catalogue describes this class of service as \"An Identification Report, with geographic origin added\" and, of what a colored-stone report does, that GIA will \"assess the characteristics of a stone (weight, measurements, shape, cutting style and color)\", \"determine if it is natural or laboratory-grown\" and \"indicate detectable treatments\". This report does all of that and adds the origin opinion. It carries no color grade, no clarity grade and no grade for the star.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eThe Star\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe Phenomenon field of GIA Sapphire Origin Report #5232980224 prints Displaying Asterism. That field is an identification field, in the same family as Species and Variety: it records that the laboratory observed the stone displaying asterism. The report's Variety field states the same observation as a variety name, Natural Star Sapphire.\u003c\/p\u003e\n\n\u003cp\u003eGIA publishes the mechanism. \"The star effect is called asterism. It's caused by reflections from tiny, needle-like inclusions that are oriented in several specific directions.\" In its own journal GIA names the inclusion species as rutile, in needle form, and states that \"The bright lines of different orientations intersect at a single point to form a star only when the needle directions lie in the same plane.\" GIA also publishes why a star stone is domed rather than faceted: \"Star corundum must be cut as a cabochon to display asterism\", and \"The cabochon-cut surface of the stone acts as a convex lens, which focuses the scattered light from multitudes of needles inside the crystal into a bright line.\" Those are GIA's published statements about how asterism works. They are not findings about this stone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat nobody grades.\u003c\/strong\u003e GIA states that \"GIA doesn't grade or provide quality analysis for sapphire\", and GIA publishes no grade for a star. So this page states nothing about the quality of the star, in its prose, in its specification table or in its structured data. The report's authority stops at Displaying Asterism, and this page stops there too.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow the star is seen.\u003c\/strong\u003e GIA's own guidance on photographing gems states that \"Direct lighting ... is also sometimes used to bring out gemstone phenomena such as asterism (a star effect) or chatoyancy (a cat's eye effect).\" A star is seen under direct lighting, from a single light source. Ask us for more images, or use the Try Before You Buy option, and look at the stone yourself under the light you intend to use.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhere This Star Sapphire Comes From\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe Geographic Origin field of GIA Sapphire Origin Report #5232980224 reads Sri Lanka. GIA's report places the geographic origin of this stone in Sri Lanka. The report prints, under Comments, what that statement is:\u003c\/p\u003e\n\n\u003cblockquote style=\"border-left: 3px solid #5b2c6f; margin: 16px 0; padding: 4px 16px; font-style: italic;\"\u003e\"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\"\u003c\/blockquote\u003e\n\n\u003cp\u003eThat sentence is GIA's own and it is printed on the paper that comes with the stone. It is why this page states the origin as GIA's expert opinion, in GIA's own words, and adds nothing to it.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the shape field and the cutting-style field separately.\u003c\/strong\u003e The report prints shape Round and cutting style Double Cabochon. Shape is the face-up outline; cutting style is how the surfaces are finished. GIA defines a double cabochon as having \"both a rounded top and bottom\", against a simple cabochon's \"rounded top and flat bottom\". A single phrase such as \"round cabochon\" collapses the two fields into one and drops the report's own word Double, so this page names each field separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead the origin line as GIA writes it.\u003c\/strong\u003e The report gives Sri Lanka and prints, in the same document, that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data. That is the strongest thing this page can say about where the stone came from, and it is said in GIA's words.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderstand what Mohs 9 does and does not tell you.\u003c\/strong\u003e Mohs measures resistance to scratching and abrasion only. Toughness is the separate property that describes how a stone resists chipping and breaking; this report prints it as \"Excellent\", and GIA publishes no defined toughness scale, so the report's word is quoted as printed and is not ranked inside one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a setting with the depth in mind.\u003c\/strong\u003e For a ring we recommend a mounting that shields the girdle edge of a domed stone, and the 6.63 mm depth on the report is worth showing to your jeweller before a design is settled. That recommendation is Crescent Gems' own — GIA publishes no setting guidance for sapphire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the report against the stone.\u003c\/strong\u003e Read the weight and the measurements off the report and match them to the stone in front of you before finalizing any loose gemstone purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand, under your own lighting, before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/purple-sapphire-buyers-guide\"\u003ePurple Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-nz\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8441\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e7.99 ct — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Corundum \/ Natural Star Sapphire — both as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eRound — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDouble Cabochon — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e10.87 - 11.06 x 6.63 mm — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003ePurple — as printed on the GIA report (GIA colored-stone reports carry no color grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eDisplaying Asterism — as printed on the GIA report. GIA does not grade star quality, so no statement about the star's quality is made on this page.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent to Translucent — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eAdditional Results\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNo Indications of Heating — as printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eGeographic Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka — GIA's expert opinion, as the report itself states\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eReport Comment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e\"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\" — printed on the GIA report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eGIA colored-stone reports carry no clarity grade, and Crescent Gems states none for this stone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs) — as printed on the GIA report. Mohs measures resistance to scratching and abrasion only.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eToughness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e\"Excellent\" — as printed on the GIA report. GIA publishes no defined toughness scale, so the report's word is quoted as printed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eBirthstone\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSeptember — as printed in the Characteristics panel of the GIA report, and given to SAPPHIRE the variety, not to corundum the species\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eLaboratory Report\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Sapphire Origin Report #5232980224, 1 July 2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 7.99 ct Purple Star Sapphire, Round Double Cabochon?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe GIA report settles the identification, the measurements, the phenomenon, the heating finding and the origin opinion: Natural Corundum, variety Natural Star Sapphire, 7.99 carats, 10.87 - 11.06 x 6.63 mm, shape Round, cutting style Double Cabochon, color Purple, transparency Transparent to Translucent, Displaying Asterism in the Phenomenon field, No Indications of Heating under Additional Results, and Sri Lanka in the Geographic Origin field as GIA's expert opinion. That is the whole of what the report determines.\u003c\/p\u003e\n\n\u003cp\u003eWhat is not on the report is said so on this page. A GIA colored-stone or origin report carries no color grade and no clarity grade, and GIA does not grade colored stones at all, so there is no grade for the star either: nothing on this page describes the quality of the star. The price per carat is our arithmetic on our own asking price, not a report field. The uses suggested at the foot of the page are ours.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Points of this Natural Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Sapphire Origin Report #5232980224\u003c\/strong\u003e\u003cbr\u003eDated 1 July 2026. Records species, variety, weight, measurements, shape, cutting style, color, transparency, the phenomenon, the heating finding and an opinion on geographic origin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies Natural Corundum, Variety Natural Star Sapphire\u003c\/strong\u003e\u003cbr\u003eBoth as printed on the report. The report prints the word Natural in each of the two fields.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenomenon: Displaying Asterism\u003c\/strong\u003e\u003cbr\u003eAs printed on the report. GIA does not grade star quality, so no statement about the star's quality is made on this page.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Results: No Indications of Heating\u003c\/strong\u003e\u003cbr\u003eAs printed on the report, in the report's own wording.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeographic Origin: Sri Lanka\u003c\/strong\u003e\u003cbr\u003eGIA's expert opinion, and the report prints that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.99 Carats, 10.87 - 11.06 x 6.63 mm\u003c\/strong\u003e\u003cbr\u003eThe weight and measurements printed on the report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape Round, Cutting Style Double Cabochon\u003c\/strong\u003e\u003cbr\u003eTwo separate fields on the report, making two separate statements, named separately here.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Purple, Transparency Transparent to Translucent\u003c\/strong\u003e\u003cbr\u003eBoth as printed on the report. A GIA colored-stone report carries no color grade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs 9, Toughness \"Excellent\"\u003c\/strong\u003e\u003cbr\u003eFrom the report's Characteristics panel. Mohs measures resistance to scratching; toughness is the separate property that describes how a stone resists chipping and breaking. GIA publishes no defined toughness scale, so the report's word is quoted as printed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeptember Birthstone of SAPPHIRE the Variety\u003c\/strong\u003e\u003cbr\u003eThe report's Characteristics panel prints Birthstone: September. September is given to sapphire the variety, not to corundum the species.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 7.99 Carats\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Star Sapphire\u003c\/li\u003e\n\u003cli\u003eDimensions: 10.87 - 11.06 x 6.63 mm (as printed on the GIA report)\u003c\/li\u003e\n\u003cli\u003eShape: Round\u003c\/li\u003e\n\u003cli\u003eCutting Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eColor: Purple — as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent to Translucent — as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Displaying Asterism — as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating — as printed on the GIA report\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Sri Lanka — GIA's expert opinion on the report\u003c\/li\u003e\n\u003cli\u003eClarity: GIA colored-stone reports carry no clarity grade, and Crescent Gems states none\u003c\/li\u003e\n\u003cli\u003eLaboratory Report: GIA (Gemological Institute of America), Sapphire Origin Report #5232980224, 1 July 2026\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale — scratch and abrasion resistance only\u003c\/li\u003e\n\u003cli\u003eToughness: \"Excellent\" as printed on the report — GIA publishes no defined toughness scale, so the report's word is quoted as printed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eThis Particular Stone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a natural gemstone: the report prints Natural Corundum and Natural Star Sapphire. Once it is sold it cannot be reordered or reproduced.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare of this 7.99 ct Purple Star Sapphire, Round Double Cabochon\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eGIA publishes care guidance for sapphire, and it states that warm, soapy water is always safe. GIA's guidance on ultrasonic and steam cleaners is conditional on the stone, and this page does not reproduce those conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat we prefer, which is ours and not GIA's.\u003c\/strong\u003e We clean a stone like this one with warm soapy water and a soft brush, and we would not put a cabochon we did not set through an ultrasonic or a steam cleaner, because we cannot see how it is held. That is Crescent Gems' own preference and not a warning from the report. GIA publishes nothing about care for cabochons, for star stones or for inclusion-rich corundum, so there is no GIA position on any of those for this page to attribute.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eWarm soapy water and a soft brush — GIA states that warm, soapy water is always safe for sapphire\u003c\/li\u003e\n\u003cli\u003eTell your jeweller the stone is a domed cabochon before any cleaning, setting or repair work — our request, not GIA's\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity, sports or manual work — our preference, not GIA's\u003c\/li\u003e\n\u003cli\u003eStore separately from other jewelry to protect the polished dome from scratching — our preference, not GIA's; the Mohs figure the report prints measures scratch and abrasion resistance only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eUses for this 7.99 ct Purple Star Sapphire, Round Double Cabochon\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCenter stone for a pendant\u003c\/li\u003e\n\u003cli\u003eCenter stone for a ring\u003c\/li\u003e\n\u003cli\u003eCufflink pair center stone\u003c\/li\u003e\n\u003cli\u003eCustom jewelry commission\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese are uses we suggest, not a line from the GIA report.\u003c\/p\u003e\n\n\u003cp\u003eFree US shipping; Try-On available.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eItem #: CG8441 | GIA Report #: 5232980224\u003c\/em\u003e\u003c\/p\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43174591529027,"sku":"CG8441","price":3990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8441_image-1.jpg?v=1779989740"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/1112023001_6f90c146-3bf9-4117-9d30-6ed99c50eb8b-1776781999.jpg?v=1781260352","url":"https:\/\/crescentgems.com\/en-nz\/collections\/natural-star-sapphires-six-ray-asterism-unheated-ceylon.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}