{"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\u003ch3 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\/custom-sapphire-rings\"\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\u003ch3 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 7.99 ct Unheated Round Purple Star Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this 7.99 ct Round Purple Star Sapphire \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003eOne of a Kind\u003c\/h3\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\u003ch3\u003eCare of Round Purple Star Sapphire\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Customers Love This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 7.99 ct Purple Star Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\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","url":"https:\/\/crescentgems.com\/products\/7-99-ct-round-purple-star-sapphire-unheated","provider":"Crescent Gems","version":"1.0","type":"link"}