{"title":"Natural Star Sapphires - Six-Ray Asterism, Unheated Ceylon","description":"\u003cp\u003eStar sapphire is one of the most extraordinary phenomena in the gemstone world — a six-rayed 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 a perfect six-rayed asterism. No two star sapphires produce the same star — each one is as individual as a fingerprint.\u003c\/p\u003e\n\n\u003ch2\u003eWhy our star sapphires\u003c\/h2\u003e\n\n\u003cp\u003eOur star sapphires are sourced from Sri Lanka, which has produced the finest star sapphires in recorded history — including the famous Star of India (563 carats, now in the American Museum of Natural History) and the Star of Lanka (193 carats). Every stone in this collection is \u003cstrong\u003enatural and unheated\u003c\/strong\u003e. This is not a choice — it is a necessity. Heat treatment dissolves the rutile silk that creates the star, destroying the asterism entirely. A genuine star sapphire is, by definition, an unheated stone.\u003c\/p\u003e\n\n\u003ch2\u003eHow to evaluate a star sapphire\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eStar quality.\u003c\/strong\u003e The star should be sharp, centered, and complete — all six rays visible and well-defined. A blurry, off-center, or incomplete star reduces value significantly. Move the stone under a single point light source (a flashlight or direct sunlight works best) and watch how the star responds: it should glide smoothly across the dome as you tilt the stone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBody color.\u003c\/strong\u003e Star sapphires come in blue (most prized), gray, black, pink, yellow, and white. Rich, saturated body color beneath a sharp star is the combination that commands the highest prices. Gray-blue is the most common; vivid blue with a strong star is genuinely rare.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTransparency.\u003c\/strong\u003e Star sapphires range from semi-transparent to opaque. Greater transparency with a visible star is rarer and more valuable — the silk must be dense enough to produce the star but not so dense that it blocks light entirely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCabochon shape.\u003c\/strong\u003e Stars are always cut as cabochons (smooth, domed surfaces) rather than faceted. The dome height matters: too flat and the star is weak; too tall and the stone looks bulky. A well-proportioned dome produces the strongest star effect.\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. They typically show a star that is too perfect, too sharp, and sits on a body color that is too even and glassy. Natural star sapphires show slight irregularities in the star and natural color variation that synthetics lack. See \u003ca href=\"\/en-ca\/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\u003eWhy star sapphires are always unheated\u003c\/h2\u003e\n\n\u003cp\u003eThe star exists because of rutile silk — the same inclusion that heat treatment is specifically designed to dissolve in faceted sapphires. At temperatures above 1,400°C, the silk dissolves back into the corundum lattice, releasing titanium to pair with iron and deepen blue color. This is desirable in a faceted blue sapphire. In a star sapphire, it is catastrophic — dissolving the silk destroys the star permanently. This is why every genuine star sapphire is unheated by default, and why star sapphires offer an inherent guarantee of natural, untreated status. For the full science, see \u003ca href=\"\/en-ca\/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-ca\/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-ca\/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-ca\/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-ca\/blogs\/information-pages-complete-guide\/sapphire-pricing-explained\"\u003eSapphire Pricing Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/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-ca\/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-ca\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eWhat Is an Unheated Sapphire?\u003c\/a\u003e — why stars are unheated by definition\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-ca\/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-ca\/blogs\/information-pages-complete-guide\/sapphire-colors-explained\"\u003eSapphire Colors Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/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-ca\/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-ca\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eHow to Commission a Custom Ring\u003c\/a\u003e — star sapphires require bezel or protective settings\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/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\u003eCertification and trust\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/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-ca\/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-ca\/blogs\/information-pages-complete-guide\/ceylon-sapphire-complete-guide\"\u003eCeylon Sapphire Complete Guide\u003c\/a\u003e — Sri Lanka is the world's premier star sapphire source\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/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-ca\/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-ca\/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-ca\/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-ca\/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-ca\/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-ca\/blogs\/information-pages-complete-guide\/cats-eye-chrysoberyl-buyers-guide\"\u003eCat's Eye Chrysoberyl Guide\u003c\/a\u003e — another phenomenon stone from Ceylon\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 different lighting. 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 Cabochon Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003e3.40 carat oval cabochon violet star sapphire, unheated, measuring 8.64 × 6.76 × 5.69 mm. The stone displays a sharp, six-rayed silver star across its domed surface under directional light — the asterism phenomenon produced by microscopic rutile needle inclusions aligned within the crystal. Violet body color with a well-centered, fully formed star. Unheated and untreated: the color and asterism are entirely natural. Accompanied by GIA Report #1236950499 confirming weight, dimensions, and unheated status. Geographic origin was not requested as part of this GIA report; the Sri Lanka (Ceylon) origin noted below reflects our own sourcing documentation rather than a GIA origin determination.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #e60000\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #e60000\"\u003e The star is visible only under a single directional light source — direct sunlight, a flashlight, or a spotlight. It will not appear under diffuse or overhead ambient lighting.\u003c\/span\u003e\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\"What stops you on this stone is the star itself — a sharp, well-centered six-ray asterism sitting squarely on a violet body color, at a substantial 3.40 carats. That combination is uncommon on its own, and it's entirely natural: unheated, untreated, nothing done to produce or enhance the effect you're seeing. Fine asterism like this is delicate; it's easily disrupted by heat treatment, which is exactly why an unheated star of this quality stands out to me.\" — Ahmed Shareek\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe phenomenon itself:\u003c\/strong\u003e Asterism requires a very specific internal structure — fine, densely packed rutile needles (\"silk\") aligned along the crystal's growth directions during formation. Most corundum never develops this structure at all, and among the fraction that does, few produce a star as sharp, well-centered, and fully formed across all six rays as this one. That alone puts phenomenon stones in a different rarity tier from standard faceted sapphires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViolet body color:\u003c\/strong\u003e Star sapphires are overwhelmingly blue, gray, or black; violet is a distinctly uncommon body color for asterism to appear in, making this stone a smaller niche within an already-niche category of gemstone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated status:\u003c\/strong\u003e Heat treatment is standard practice in the sapphire trade and frequently disrupts or destroys fine silk, which is what produces asterism in the first place — so this stone's unheated status is independently significant, and pairing it with a star this well-formed is notable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e At 3.40 carats, this is a substantial star sapphire; large stones with strong, centered asterism become progressively harder to source as size increases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Accompanied by GIA Report #1236950499, confirming weight, dimensions, and unheated status. Note that geographic origin was not requested as part of this GIA report — the Sri Lanka (Ceylon) origin is seller-stated, based on our own sourcing documentation, not a GIA origin determination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e A sharp, well-centered six-ray star, in an uncommon violet body color, fully natural and unheated, at 3.40 carats with GIA documentation — each factor compounds the others, making this a genuinely uncommon stone rather than merely a good example of a common type.\u003c\/li\u003e\n\u003c\/ul\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\u003eAs noted above, the star is only visible under a single directional light source — direct sunlight, a flashlight, or a spotlight. Under diffuse or overhead ambient lighting it will not appear; view the stone under a point light source to see the asterism at its best.\u003c\/li\u003e\n\u003cli\u003eWhen judging star quality, look for sharpness (crisp, thin rays rather than fuzzy or diffuse ones), centering (the star's axis point sitting in the middle of the dome), and completeness (all six rays fully formed and reaching the edge of the dome, not broken or partial).\u003c\/li\u003e\n\u003cli\u003eAn opaque body with a translucent dome at the star's apex is characteristic of star sapphire and should not be read as a clarity defect — it's the normal optical structure that allows the asterism to display.\u003c\/li\u003e\n\u003cli\u003eOrigin is seller-stated: the Sri Lanka (Ceylon) attribution reflects our own sourcing documentation, not a GIA origin determination, since origin was not requested as part of the GIA report on this stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTry Before You Buy:\u003c\/strong\u003e Because asterism is a lighting-dependent phenomenon, we recommend viewing the stone under a single directional light source yourself before making a final decision — 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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon Sapphire — Why Sri Lanka Origin Matters\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;\"\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 \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Violet Star Sapphire (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;\"\u003eShape \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval, Double 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 \/ Intensity\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;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSix-ray 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;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone — unheated and untreated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon) — seller-stated, GIA origin not requested\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;\"\u003eOpaque body with translucent asterism dome (characteristic of 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;\"\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;\"\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\u003eVariety: Violet 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\u003eGem Type: Natural Violet Star Sapphire\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon) — per seller sourcing documentation, not a GIA origin determination\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Six-ray asterism\u003c\/li\u003e\n\u003cli\u003eTreatment: None — unheated and untreated\u003c\/li\u003e\n\u003cli\u003eColor: Violet\u003c\/li\u003e\n\u003cli\u003eTransparency: Translucent\u003c\/li\u003e\n\u003cli\u003eClarity: Opaque body with translucent asterism dome (characteristic of star sapphire)\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #1236950499\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\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\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eStore separately to avoid surface contact\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eOne of a Kind\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a single natural gemstone, not a manufactured or lab-created replica — no two star sapphires form with identical color, asterism pattern, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the GIA report is the exact, individual stone you receive.\u003c\/p\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 Unheated Pink Star Sapphire – Oval Cabochon Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003e3.26 carat oval double cabochon pink star sapphire, unheated, measuring 8.66 × 7.95 × 5.15 mm. The stone displays a sharp, six-rayed silver star across its domed surface under directional light — the asterism phenomenon produced by microscopic rutile needle inclusions aligned within the crystal. Purplish pink body color, fully transparent, with a well-centered, complete star. Unheated: GIA found no indications of heating. Accompanied by GIA Report #2235836233, a Sapphire Origin Report confirming weight, dimensions, color, transparency, unheated status, and geographic origin (Sri Lanka).\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #e60000\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #e60000\"\u003e The star is visible only under a single directional light source — direct sunlight, a flashlight, or a spotlight. It will not appear under diffuse or overhead ambient lighting.\u003c\/span\u003e\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\n\u003cp\u003e\"What makes this stone stand out isn't just that it's a star sapphire — it's that the star is sharp and six-rayed, sitting in a body color that's genuinely transparent, not the milky or opaque material most asterism stones are cut from. At 3.26 carats that combination alone is uncommon. Add a GIA report that confirms Ceylon origin on the same document as the unheated finding, and you have a stone that documents itself completely — phenomenon, color, treatment, and origin, all in one certificate.\" — Ahmed Shareek\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe asterism itself:\u003c\/strong\u003e phenomenon gemstones — stones that display an optical effect like a star, cat's-eye, or color change — are inherently rarer than standard faceted stones, since the effect depends on a precise internal structure that most rough material never develops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparency alongside a sharp star:\u003c\/strong\u003e the same rutile silk that creates asterism also scatters light, which is why most star sapphires are translucent to opaque. A star sapphire that is genuinely transparent, delivering both a sharp, well-defined star and good see-through clarity, is a real distinguishing quality factor — most examples on the market have to trade one for the other.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePink body color in a star stone:\u003c\/strong\u003e the large majority of star sapphires occur in blue, gray, or black material. Pink asterism sapphires are a smaller niche within an already small category.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Sapphire Origin Report:\u003c\/strong\u003e this stone carries dual confirmation — unheated status and Ceylon geographic origin — documented together on a single GIA report, rather than a basic identification report alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e at 3.26 carats, this is a substantial stone for a transparent star sapphire of this quality, where fine material tends to run smaller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e a sharp, complete six-ray star, in transparent pink body color, unheated, GIA-confirmed to Ceylon, at over three carats — each factor is uncommon on its own, and the combination is what makes this particular stone difficult to replace.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eRemember the star only appears under a single directional light source (direct sun, a flashlight, or a spotlight) — it will not show under diffuse or overhead ambient lighting, so view it accordingly before judging the effect.\u003c\/li\u003e\n\u003cli\u003eEvaluate star quality on three criteria: sharpness (how crisp and thin the rays are), centering (how well the star sits in the middle of the dome), and completeness (whether all six rays reach the girdle) — this stone scores well on all three.\u003c\/li\u003e\n\u003cli\u003eA star sapphire that is both transparent and displays a strong, sharp asterism is uncommon; most stones require a tradeoff between the two, so this combination is worth weighing carefully against comparable stones.\u003c\/li\u003e\n\u003cli\u003eA GIA Sapphire Origin Report carries more evidentiary weight than a basic identification report, since it independently confirms geographic origin in addition to treatment status — a meaningful difference when comparing two similar-looking stones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTry Before You Buy:\u003c\/strong\u003e Crescent Gems offers try-at-home options so you can see the star perform under your own lighting before committing.\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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/pink-sapphire-buyers-guide\"\u003ePink Sapphire — The Complete Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon Sapphire — Why Sri Lanka Origin Matters\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\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 Pink Star Sapphire (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;\"\u003eShape \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval, Double 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;\"\u003e8.66 × 7.95 × 5.15 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 \/ Intensity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003ePink (Purplish Pink)\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;\"\u003eSix-ray 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;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone — unheated, no indications of heating per GIA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon) — GIA confirmed\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 specified\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\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 #2235836233\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: CG8288\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 3.26 carats\u003c\/li\u003e\n\u003cli\u003eVariety: Pink Star Sapphire\u003c\/li\u003e\n\u003cli\u003eShape: Oval\u003c\/li\u003e\n\u003cli\u003eCutting Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eDimensions: 8.66 × 7.95 × 5.15 mm\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Pink Star Sapphire\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon) — GIA confirmed (GIA Sapphire Origin Report)\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Six-ray asterism\u003c\/li\u003e\n\u003cli\u003eTreatment: None — unheated, no indications of heating per GIA\u003c\/li\u003e\n\u003cli\u003eColor: Pink (Purplish Pink)\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #2235836233\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\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\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eStore separately to avoid surface contact\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eOne of a Kind\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a single natural gemstone, not a manufactured or lab-created replica — no two star sapphires form with identical color, asterism pattern, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the GIA report is the exact, individual stone you receive.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eWhat's included with this Pink Star Sapphire\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGIA Report #2235836233\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":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-aaa-grade-blue-ceylon-star-sapphire-unheated","title":"8.09 ct Natural Unheated Blue Star Sapphire – Cabochon Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eAn exceptional 8.09 ct Blue Ceylon Star Sapphire from Sri Lanka (Ceylon), completely unheated, with a GIA Sapphire Origin Report (#2233980218). This stone displays a six-rayed asterism — a sharp, silver-white star that crosses the center of the cabochon dome when the stone is illuminated by a single directional light source. The blue body color is the classical, most sought-after color for star sapphires, and at 8.09 carats, the star is visible at full room-length viewing distance. Among the rarest combinations in the phenomenon gemstone market: large size, Ceylon origin, unheated, and GIA documentation.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(195, 9, 9);\"\u003e\u003cstrong\u003eSTAR WILL ONLY BE SEEN UNDER DIRECT SUNLIGHT OR FLASHLIGHT.\u003c\/strong\u003e\u003c\/span\u003e\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=\"https:\/\/crescentgems.com\/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\"I would classify this stone as a Gray Star Sapphire, GIA color says blue, What am I to do?, This is a  8+ carat unheated blue star sapphire with a sharp, GIA-confirmed six-ray star and GIA-confirmed Ceylon origin is a genuinely rare combination —  stones that bring together this size, this star quality, and full GIA origin documentation come along only a handful of times a year. This is the flagship phenomenon stone in this batch.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA True Phenomenon Gem:\u003c\/strong\u003e The asterism itself is the primary rarity driver here — a sharp, complete six-ray star (GIA-confirmed) requires a very specific density and alignment of fibrous rutile \"silk\" inclusions formed during the corundum's growth, a combination nature produces far less often than the clean material used for standard faceted sapphires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Size:\u003c\/strong\u003e At 8.09 carats, this stone is large for any star sapphire — let alone one with GIA-confirmed Ceylon origin. Fine star sapphires of this scale, with strong asterism intact, are uncommon at any price point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated Status:\u003c\/strong\u003e The majority of sapphires on the market today are heat-treated, and heating is generally understood to risk disrupting the fine rutile silk responsible for asterism. An unheated stone with a strong, sharp star intact is independently rare — this stone carries GIA confirmation of no indications of heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Origin Report Confirms Both Origin and Phenomenon:\u003c\/strong\u003e A single GIA Sapphire Origin Report (#2233980218) verifying Ceylon origin AND the six-ray asterism is a genuine differentiator — most phenomenon stones in the market carry no such combined, independent documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Blue Color:\u003c\/strong\u003e Blue is the most traditional and historically prized star sapphire color, adding to the stone's collectibility alongside its rarity in size, treatment, and phenomenon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined Effect:\u003c\/strong\u003e The convergence of a sharp, GIA-confirmed six-ray star, 8+ carat size, unheated status, confirmed Ceylon origin, and classic blue color in a single stone places this piece among the rarest tiers of the star sapphire market.\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\u003eViewing Conditions Matter:\u003c\/strong\u003e This star is only visible under a single directional light source — direct sunlight or a flashlight beam. Under diffuse indoor lighting the star will not appear; this is expected behavior for all star sapphires, not a flaw specific to this stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJudge Star Quality Carefully:\u003c\/strong\u003e Look for sharpness, centering, and completeness of all six rays — a star that is faint, off-center, or missing rays is lower quality than one with a crisp, complete, well-centered asterism like this stone's.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTranslucency Is Normal:\u003c\/strong\u003e Cabochon-cut phenomenon stones are translucent by nature — the very rutile silk structure that produces the star also scatters light through the stone. This is expected for a stone of this type, not a clarity defect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify Natural Origin:\u003c\/strong\u003e Confirm any star sapphire is natural — not synthetic, diffusion-treated, or assembled\/foil-backed to imitate a star — through independent lab documentation. This stone's GIA Sapphire Origin Report confirms it is natural, unheated, and Ceylon in origin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTry Before You Buy:\u003c\/strong\u003e Because the star's appearance depends entirely on lighting conditions, we recommend using our Try-On service to see the asterism in your own hand and light before committing.\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=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Complete Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon Sapphire Origin Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/pages\/best-sapphires-under-10000\"\u003eBest Sapphires 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: 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;\"\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;\"\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;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Blue Star Sapphire (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;\"\u003eShape \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval, Double 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;\"\u003e12.84 × 10.37 × 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;\"\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;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSix-ray asterism, GIA-confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eUnheated — No 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;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon), GIA confirmed\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 (cabochon \/ phenomenal 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;\"\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;\"\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 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 Ceylon Star Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eLarge blue star sapphires above 5 carats in unheated quality from Ceylon with GIA documentation represent the premium tier of star sapphire collecting. At 8.09 carats, the star has the scale to command any jewelry piece it is set in, and the GIA report (#2233980218) confirms the weight, dimensions, treatment status (unheated), and origin. The blue body color is the traditional, classic star sapphire color prized since antiquity.\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\u003eUnheated Ceylon Origin\u003c\/strong\u003e\u003cbr\u003eNo thermal treatment — the asterism and body color are entirely natural. GIA report #2233980218 confirms treatment status and origin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharp Six-Ray Asterism\u003c\/strong\u003e\u003cbr\u003eA complete, sharp six-rayed silver star visible under any single directional light source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional 8+ Carat Size\u003c\/strong\u003e\u003cbr\u003eThe asterism is visible at room distance at this scale — a commanding statement stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue Body Color\u003c\/strong\u003e\u003cbr\u003eThe classic, most traditional star sapphire color — timeless and instantly recognizable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness: 9 on the Mohs scale\u003c\/strong\u003e\u003cbr\u003eCorundum durability appropriate for any jewelry application.\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\u003eGem Type: Natural Blue Star Sapphire\u003c\/li\u003e\n\u003cli\u003eVariety: Blue 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\u003eCut Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon), confirmed by GIA\u003c\/li\u003e\n\u003cli\u003eTreatment: Unheated — No Indications of Heating (per GIA report)\u003c\/li\u003e\n\u003cli\u003eColor: Blue\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Six-ray asterism, confirmed by GIA — visible under direct single-source light only\u003c\/li\u003e\n\u003cli\u003eTransparency: Translucent (per GIA report)\u003c\/li\u003e\n\u003cli\u003eCertification: GIA (Gemological Institute of America), Sapphire Origin Report #2233980218\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOne of a Kind\u003c\/h2\u003e\n\u003cp\u003eThis is a natural, untreated gemstone — no two star sapphires display exactly the same star, body color, and dome geometry, and once this stone is sold it cannot be reordered or reproduced.\u003c\/p\u003e\n\u003ch2\u003eCare of Blue Ceylon Star Sapphire\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity, sports, or manual work\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003cli\u003eStore separately from other jewelry to protect the domed surface from scratching\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis 8.09 ct Blue Ceylon Star Sapphire has been hand-selected for the sharpness and centering of its six-ray star and the evenness of its blue body — the two qualities that define a premium star sapphire at any size.\u003c\/p\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\u003eGIA-Confirmed Unheated:\u003c\/strong\u003e Independent documentation of treatment status and origin (Report #2233980218).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8+ Carat Scale:\u003c\/strong\u003e Large enough that the star reads clearly at any wearing distance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Blue Color:\u003c\/strong\u003e The traditional, most recognized star sapphire color.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Ceylon origin, untreated, every attribute disclosed honestly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOwning this 8.09 ct unheated Ceylon blue star sapphire means investing in a phenomenon gemstone at the scale and specification where collecting and fine jewelry converge.\u003c\/p\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\u003eStatement pendant — star visible in motion\u003c\/li\u003e\n\u003cli\u003eLarge collector or display piece\u003c\/li\u003e\n\u003cli\u003eGentleman's ring center stone at statement scale\u003c\/li\u003e\n\u003cli\u003eInvestment in premium Ceylon star sapphire with GIA documentation\u003c\/li\u003e\n\u003cli\u003eAstrological or spiritual jewelry at meaningful weight\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 Unheated Purple Star Sapphire – Round Cabochon Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 7.99 ct Round Purple Star Sapphire, from Sri Lanka (Ceylon), completely unheated, with a GIA Sapphire Origin Report (#5232980224) confirming species, weight, dimensions, geographic origin, and the presence of asterism. This stone displays a six-rayed asterism — a sharp silver-white star that moves across the dome when illuminated by a single directional light source. The round cabochon format is the most classical shape for star sapphires, centering the star symmetrically on the dome for maximum visual impact. At 7.99 carats unheated from documented Ceylon origin, this stone sits at the premium tier of the star sapphire market.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(195, 9, 9)\"\u003e\u003cstrong\u003eSTAR WILL ONLY BE SEEN UNDER DIRECT SUNLIGHT OR FLASHLIGHT.\u003c\/strong\u003e\u003c\/span\u003e\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=\"https:\/\/crescentgems.com\/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\"Large natural purple star sapphires above 7 carats are rarely encountered. This gemstone combines significant size with a distinct six-ray star and no heat treatment, making it particularly attractive for collectors and custom jewellery.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eStar sapphires are already a minority within sapphire production — most rough corundum is cut into faceted stones, and only a fraction of the remainder displays sharp, symmetric asterism. Within that smaller group, this stone sits near the top of several independent rarity factors that compound rather than simply add up:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Purple is an uncommon body color for star sapphire; most star material on the market is blue, gray, or black. A well-saturated purple star is encountered far less often than a blue equivalent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Most commercial star sapphires are cut below 3–4 carats. Stones approaching or exceeding 7 carats that still hold a sharp, evenly-formed star — rather than a diffuse or broken one — become progressively scarcer as size increases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e A large share of star sapphires sold today have been heat-treated or lattice-diffused to improve color or strengthen asterism. A completely unheated star sapphire at this size, with both the star and body color entirely natural, represents a small percentage of total supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e A GIA report confirming species, unheated status, and asterism together — as this stone carries — is not something every star sapphire on the market can offer, even among genuinely natural material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e Any one of the factors above is uncommon on its own. A stone that is simultaneously large, purple, unheated, sharply asterated, and GIA-documented is rare enough that a directly comparable piece is not something a buyer should expect to find readily available, or to be able to reorder later.\u003c\/li\u003e\n\u003c\/ul\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\u003eCheck your lighting first.\u003c\/strong\u003e The star on this stone only resolves under a single, direct light source (sunlight or a flashlight beam) — diffuse indoor lighting will show a soft glow rather than a defined star. If the asterism is your main reason for buying, view the stone under the lighting you intend to use before committing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting choice matters.\u003c\/strong\u003e Cabochon star sapphires are almost always bezel-set or given a protective collar rather than prong-set, since the domed surface has no facets to catch light from the sides. At just under 11mm across, this stone reads as a substantial centerpiece for a pendant, statement ring, or cufflink pair; ring settings should be discussed with a jeweler given the 6.63mm depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify treatment claims when comparing elsewhere.\u003c\/strong\u003e Many star sapphires on the market are heat-treated or diffusion-treated to sharpen the star or deepen color. When comparing this stone to alternatives, ask specifically whether a GIA (or equivalent) report confirms \"no indications of heating\" — general descriptions like \"natural\" or \"genuine\" do not by themselves rule out treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh the long-term value.\u003c\/strong\u003e Because the combination of size, color, unheated status, and documentation is uncommon (see Rarity Analysis above), a stone like this is not easily replaced once sold — worth factoring in if you are weighing it against a more common heated alternative at a lower price.\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 and its star 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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/star-sapphire-complete-buyers-guide\"\u003eStar Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/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=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/violet-sapphires-the-rare-beauty-of-royal-purple-elegance\"\u003ePurple vs Violet Sapphire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/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\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 — Purple 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 \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eRound, Double 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;\"\u003e10.87 – 11.06 x 6.63 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 \/ Intensity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003ePurple (Grayish Purple), Medium Light\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;\"\u003eSix-ray asterism, GIA confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone — unheated, per GIA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon), GIA confirmed\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 (cabochon \/ phenomenal 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;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent to translucent\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 Sapphire Origin Report #5232980224\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 Unheated Round Purple Star Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe round cabochon is the preferred format for star sapphires because the symmetric dome presents the six-ray star with equal arm length in all directions, making the phenomenon as visually balanced as possible. At 7.99 carats, the star is large enough to be clearly visible across a room under a single light source, and the GIA report (#5232980224) confirms the asterism, the unheated status, and the Ceylon origin.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this 7.99 ct Round Purple Star Sapphire \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated Ceylon Origin\u003c\/strong\u003e\u003cbr\u003eNo thermal treatment — the asterism and purple body color are entirely natural.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Cabochon — Classical Format\u003c\/strong\u003e\u003cbr\u003eThe round dome presents the six-ray star with perfect symmetry — the traditional star sapphire format.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharp Six-Ray Asterism\u003c\/strong\u003e\u003cbr\u003eA complete, sharp six-rayed silver star under direct single-source illumination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNear-8-Carat Scale\u003c\/strong\u003e\u003cbr\u003eAt this size the star has commanding room-scale presence under a single light source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness: 9 on the Mohs scale\u003c\/strong\u003e\u003cbr\u003eCorundum durability for any jewelry application.\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\u003eGem Type: Natural Purple Star Sapphire\u003c\/li\u003e\n\u003cli\u003eVariety: Purple Star Sapphire\u003c\/li\u003e\n\u003cli\u003eDimensions: 10.87 - 11.06 x 6.63 mm (per GIA report)\u003c\/li\u003e\n\u003cli\u003eShape: Round\u003c\/li\u003e\n\u003cli\u003eCut Style: Double Cabochon\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon), confirmed by GIA\u003c\/li\u003e\n\u003cli\u003eTreatment: Unheated — No Indications of Heating (per GIA report)\u003c\/li\u003e\n\u003cli\u003eColor: Purple\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Six-ray asterism, confirmed by GIA\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent to Translucent (characteristic of star sapphire)\u003c\/li\u003e\n\u003cli\u003eCertification: GIA (Gemological Institute of America), Sapphire Origin Report #5232980224\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOne of a Kind\u003c\/h2\u003e\n\n\u003cp\u003eThis is a natural, untreated gemstone — no two star sapphires display exactly the same star, body color, and dome geometry, and once this stone is sold it cannot be reordered or reproduced.\u003c\/p\u003e\n\n\u003ch2\u003eCare of Round Purple Star Sapphire\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity, sports, or manual work\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003cli\u003eStore separately from other jewelry to protect the domed surface from scratching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 7.99 ct Round Purple Star Sapphire has been hand-selected for the quality of its six-ray star and its purple body color — the two elements that define a fine star sapphire regardless of size.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Customers Love This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Documentation:\u003c\/strong\u003e Ceylon origin, unheated status, and asterism confirmed by GIA report #5232980224.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Symmetry:\u003c\/strong\u003e The classical cabochon format for maximum star symmetry and visual balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNear-8-Carat Presence:\u003c\/strong\u003e Commanding scale for statement jewelry and collector display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Ceylon origin, unheated, every attribute disclosed honestly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 7.99 ct unheated round purple star sapphire means choosing a phenomenon gemstone with classical format, exceptional scale, and GIA documentation.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 7.99 ct Purple Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eStatement pendant — star visible under any single light\u003c\/li\u003e\n\u003cli\u003eLarge collector or display piece\u003c\/li\u003e\n\u003cli\u003eGentleman's statement ring\u003c\/li\u003e\n\u003cli\u003eInvestment in documented premium star sapphire\u003c\/li\u003e\n\u003cli\u003eAstrological or spiritual jewelry at meaningful weight\u003c\/li\u003e\n\u003c\/ul\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-ca\/collections\/natural-star-sapphires-six-ray-asterism-unheated-ceylon.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}