{"title":"Untreated Blue Sapphires - Unheated Ceylon Loose Stones","description":"\u003cp\u003eUntreated Blue Sapphires is the world's most iconic coloured gemstone in its rarest, most collectible form - corundum coloured by trace iron and titanium, showing its entirely natural colour without any thermal enhancement. This collection is our flagship: natural, unheated blue sapphires sourced directly from Sri Lanka, the historic home of fine sapphire mining. For a complete explanation of what unheated means and why it commands a premium, see our \u003ca href=\"\/en-be\/pages\/heated-vs-unheated\"\u003eheated vs unheated guide\u003c\/a\u003e. For why Ceylon origin matters, see our \u003ca href=\"\/en-be\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon sapphire origin guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Our Unheated Ceylon Blue Sapphires\u003c\/h2\u003e\n\n\u003cp\u003eEvery stone is hand-selected from rough we source through direct relationships with Sri Lankan miners and cutters. Unheated stones are significantly rarer than heated equivalents and carry greater collectible and investment value - the premium runs 30-200% depending on size and colour. Premium pieces ship with \u003cstrong\u003eGIA reports\u003c\/strong\u003e confirming no indications of heating. Select pieces are eligible for our \u003ca href=\"\/en-be\/collections\/try-before-you-buy-loose-gemstone\"\u003eTry-On programme\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBrowse by Carat Weight\u003c\/h2\u003e\n\n\u003cp\u003eWe separate our unheated Ceylon blues by size tier: \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-under-1-carat\"\u003eunder 1 carat\u003c\/a\u003e for accessible entry-point stones, \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-1-carat\"\u003eover 1 carat\u003c\/a\u003e for engagement ring centre stones with strong presence, and \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-2-carats\"\u003eover 2 carats\u003c\/a\u003e for serious collector and investment acquisitions - all GIA-certified at this tier.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Choose an Unheated Blue Sapphire\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eColour.\u003c\/strong\u003e Cornflower blue (medium-vivid, slightly violet-leaning) and royal blue (medium-dark, vivid, pure blue) are the most prized positions. Avoid stones that appear inky under indoor lighting. \u003cstrong\u003eCut.\u003c\/strong\u003e\u003ca href=\"\/en-be\/collections\/oval-sapphire-engagement-ready-loose-stones\"\u003eOval\u003c\/a\u003e and \u003ca href=\"\/en-be\/collections\/cushion-sapphires-vintage-style-loose-stones\"\u003ecushion\u003c\/a\u003e are most common. \u003ca href=\"\/en-be\/collections\/round-sapphires-calibrated-loose-stones\"\u003eRound\u003c\/a\u003e, \u003ca href=\"\/en-be\/collections\/emerald-cut-sapphires-usa\"\u003eemerald cut\u003c\/a\u003e, and \u003ca href=\"\/en-be\/collections\/radiant-cut-sapphires-usa\"\u003eradiant\u003c\/a\u003e unheated blues are rarer and command a cut premium. \u003cstrong\u003eDocumentation.\u003c\/strong\u003e GIA laboratory report confirming no indications of heating is essential for any serious unheated purchase above $500 per carat. See our \u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eguide to reading a GIA report\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eUnheated Blue Sapphire for Engagement Rings, Collectors, and Jyotish\u003c\/h2\u003e\n\n\u003cp\u003eFor \u003cstrong\u003eengagement ring buyers\u003c\/strong\u003e, an unheated blue sapphire is the natural-colour version of the most historically important engagement ring stone in existence. See our \u003ca href=\"\/en-be\/pages\/sapphire-engagement-ring-guide\"\u003esapphire engagement ring guide\u003c\/a\u003e and our \u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/blue-sapphire-engagement-ring-guide-what-every-buyer-should-know-before-purchasing\"\u003eblue sapphire engagement ring guide\u003c\/a\u003e. For \u003cstrong\u003ecollectors and investors\u003c\/strong\u003e, unheated Ceylon blue with GIA documentation is one of the most historically stable investment categories in natural gemstones - see our \u003ca href=\"\/en-be\/collections\/collectors-and-investment-gemstones\"\u003einvestment gemstones collection\u003c\/a\u003e. For \u003cstrong\u003eJyotish buyers\u003c\/strong\u003e seeking Neelam for Saturn, unheated is non-negotiable - see our \u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/buying-sapphires-for-jyotish-vedic-astrology\"\u003eJyotish sapphire guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eEmail \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e. 14-day return. Free US shipping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eRelated: \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-under-1-carat\"\u003e\u003cem\u003eCeylon blue under 1ct\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-1-carat\"\u003e\u003cem\u003eCeylon blue over 1ct\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-2-carats\"\u003e\u003cem\u003eCeylon blue over 2ct\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/blue-sapphire\"\u003e\u003cem\u003eAll blue sapphires\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/untreated-sapphires\"\u003e\u003cem\u003eAll unheated sapphires\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/collectors-and-investment-gemstones\"\u003e\u003cem\u003eInvestment gemstones\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-be\/collections\/all-sapphire-gemstones\"\u003e\u003cem\u003eAll sapphires\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"2-00-ct-radiant-ceylon-blue-sapphire-unheated-gia","title":"2.00 ct Natural Blue Sapphire, Ceylon (Sri Lanka) – Radiant Cut, Unheated | GIA Sapphire Report 5232922099","description":"\u003cp\u003eA natural 2.00 ct blue sapphire, \u003cstrong\u003eunheated\u003c\/strong\u003e, cut as a \u003cstrong\u003eradiant\u003c\/strong\u003e (a rectangular, cut-corner outline finished throughout with brilliant faceting), measuring 7.91 × 5.48 × 4.74 mm, on \u003cstrong\u003eGIA Sapphire Report 5232922099\u003c\/strong\u003e (16 April 2026), which records \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e. The \u003cstrong\u003eSri Lanka\u003c\/strong\u003e origin is our own sourcing record — we bought it through our own buying in Sri Lanka — not a GIA determination.\u003c\/p\u003e\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-be\/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 picked this stone for its shape. The cut corners and the brilliant faceting make a crisp rectangle that sits well in a modern ring. Before you buy, watch the video and look up the report number on GIA's own site. That is what I would do.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report 5232922099 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is our own sourcing record,\u003c\/strong\u003e not a lab finding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare price per carat,\u003c\/strong\u003e and take the millimetres to your jeweler for a mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eLearn More About This Gemstone\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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-be\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eWhat Is an Unheated Sapphire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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-be\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Sapphire Rings Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Sapphire Report 5232922099, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665943564355,"sku":"CG8332","price":6800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_9ad5109f-8fdb-44c7-abfe-2aeec56391c2.jpg?v=1779990307"},{"product_id":"1-28-ct-oval-ceylon-blue-sapphire-unheated","title":"1.28 ct Natural Unheated Blue Sapphire – Oval Cut | AGCL Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 1.28 ct blue sapphire, Oval, \u003cstrong\u003eunheated\u003c\/strong\u003e, measuring 6.48 × 5.42 × 4.70 mm, on \u003cstrong\u003eAGCL Report #M2511398\u003c\/strong\u003e. A medium-intense blue with strong brilliance across the mixed brilliant faceting.\u003c\/p\u003e\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-be\/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\"What stands out on this 1.28 carat oval is the pairing of true unheated color with a medium-intense Ceylon blue saturation — that combination gets harder to find as stone size increases, and this one holds it cleanly at just over a carat.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e confirm report #M2511398, its weight and measurements against the stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is our own assessment\u003c\/strong\u003e (Sri Lanka (Ceylon)); the report does not address geographic origin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare price per carat,\u003c\/strong\u003e and take the millimetres to your jeweler for a mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\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-be\/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-be\/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-be\/blogs\/information-pages-complete-guide\/natural-sapphires-online-premium-gemstones\"\u003eHow to Buy Natural Sapphires Online: What Certification Actually Tells You\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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-be\/blogs\/information-pages-complete-guide\/sapphire-vs-tanzanite\"\u003eBlue Sapphire vs. Tanzanite\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with AGCL Report #M2511398, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665943957571,"sku":"CG8330","price":1584.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_d6dc8bbc-bd53-4c92-88b4-1cc10e67b85f.jpg?v=1779990330"},{"product_id":"5-39-ct-round-ceylon-blue-sapphire-unheated-gia","title":"5.39 ct Natural Unheated Blue Sapphire – Round | GIA Sapphire Origin Report 5231646038 | Sri Lanka","description":"\u003cp\u003eA natural 5.39 ct blue sapphire, Round, \u003cstrong\u003eunheated\u003c\/strong\u003e, on \u003cstrong\u003eGIA Sapphire Origin Report 5231646038\u003c\/strong\u003e (31 July 2025). GIA prints Colour Blue, a Modified Brilliant crown over a Step pavilion, and under Treatment \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e. Origin is given as \u003cstrong\u003eSri Lanka\u003c\/strong\u003e (GIA’s expert opinion).\u003c\/p\u003e\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;\"\u003eThe Owner's View\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/en-be\/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 buy on the paper first. This stone came in with a GIA Sapphire Origin Report, and the two fields I read before anything else are the geographic origin opinion and the TREATMENT line. Both are printed on it. Read them yourself at reportcheck.gia.edu before you read anything I write.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report 5231646038 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is GIA’s expert opinion\u003c\/strong\u003e (Sri Lanka), printed with the usual disclaimer.\u003c\/li\u003e\n\u003cli\u003eA substantial stone — compare price per carat, and see it first via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\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-be\/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-be\/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-be\/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-be\/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-be\/blogs\/information-pages-complete-guide\/ceylon-sapphire-complete-guide\"\u003eSapphire Origin Guide: Sri Lanka\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/is-a-round-sapphire-good-for-an-engagement-ring-cut-color-and-what-to-know-before-you-buy\"\u003eIs a Round Sapphire Good for an Engagement Ring?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Sapphire Origin Report 5231646038, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665947136067,"sku":"CG8262","price":34496.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/image-2.jpg?v=1785416885"},{"product_id":"2-01-ct-color-change-sapphire-unheated-gia","title":"2.01 ct Natural Color-Change Sapphire – Cushion, Unheated | GIA Sapphire Report 1236949156","description":"\u003cp\u003eA natural 2.01 ct \u003cstrong\u003ecolour-change sapphire\u003c\/strong\u003e, Cushion, \u003cstrong\u003eunheated\u003c\/strong\u003e, measuring 7.17 × 5.80 × 4.81 mm, on \u003cstrong\u003eGIA Sapphire Report #1236949156\u003c\/strong\u003e (12 May 2026). GIA records the colour as \u003cstrong\u003eGreenish Blue changing to Purple\u003c\/strong\u003e, and Additional Results \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e. Its Geographic Origin reads Not Requested.\u003c\/p\u003e\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-be\/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\"This one is a 2.01 carat cushion, and it comes with a GIA Sapphire Report whose fields you can read for yourself. Face-up, at normal viewing distance, it looks eye-clean to me; under magnification you can see inclusions, and some show in GIA's report photograph. Ask me for more images and look at it before you decide.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #1236949156 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe colour change is GIA’s recorded field\u003c\/strong\u003e (Greenish Blue changing to Purple) — see it shift between daylight and warm indoor light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e origin was not requested, so GIA names no country.\u003c\/li\u003e\n\u003cli\u003eSee it shift for yourself via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Sapphire Report #1236949156, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42798903623747,"sku":"CG8355","price":2211.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_96c376e1-d3a5-470f-affd-600dfa3a10c7.jpg?v=1778308039"},{"product_id":"2-04-ct-square-cushion-natural-blue-sapphire-gia","title":"2.04 ct Natural Blue Sapphire, Sri Lanka – Cushion, Unheated | GIA Sapphire Origin Report 6233835339","description":"\u003cp\u003eA natural 2.04 ct blue sapphire, Cushion, \u003cstrong\u003eunheated\u003c\/strong\u003e, measuring 6.58 × 6.37 × 5.57 mm, on \u003cstrong\u003eGIA Sapphire Origin Report #6233835339\u003c\/strong\u003e (14 Jan 2026). Additional Results reads \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e, and origin is given as \u003cstrong\u003eSri Lanka\u003c\/strong\u003e (GIA’s expert opinion).\u003c\/p\u003e\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-be\/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\"This one is a 2.04 carat cushion, and it comes with a GIA Sapphire Origin Report whose fields you can read for yourself: color, transparency, the two cutting-style entries, geographic origin and Additional Results. I would rather you judged it from the report and the photographs than from anything I say about it, so ask me for more images and look.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #6233835339 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is GIA’s expert opinion\u003c\/strong\u003e (Sri Lanka), printed with the usual disclaimer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare price per carat,\u003c\/strong\u003e and take the millimetres to your jeweler for a mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\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-be\/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-be\/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-be\/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-be\/blogs\/information-pages-complete-guide\/cushion-cut-sapphire-guide\"\u003eCushion Cut Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Sapphire Origin Report #6233835339, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42798903853123,"sku":"CG8356","price":8160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_08ae791e-c067-476e-8325-21d9a82948f4.jpg?v=1778352167"},{"product_id":"3-19-ct-cushion-deep-blue-sapphire-unheated-gia","title":"3.19 ct Natural Unheated Blue Sapphire, Sri Lanka (Ceylon) – Cushion Cut | GIA Sapphire Report 2235949149","description":"\u003cp\u003eA natural 3.19 ct blue sapphire, Cushion, \u003cstrong\u003eunheated\u003c\/strong\u003e, measuring 8.07 × 6.79 × 6.32 mm, on \u003cstrong\u003eGIA Report #2235949149\u003c\/strong\u003e, whose Additional Results reads \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e. Geographic origin was not requested, so GIA issued no origin opinion; the \u003cstrong\u003eSri Lanka (Ceylon)\u003c\/strong\u003e origin here is our own sourcing record — we buy direct through our Colombo, Beruwala and Ratnapura offices — not a GIA determination.\u003c\/p\u003e\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-be\/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\"This is a 3.19 carat cushion blue sapphire, and its GIA report reads 'No Indications of Heating' in the Additional Results field. The cut is doing the work here — a Modified Brilliant Cut crown over a Modified Step Cut pavilion, which is how cushions of this shape are usually cut for brightness. I show stones like this to clients who want to read the paper for themselves.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #2235949149 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is our own sourcing record,\u003c\/strong\u003e not a lab finding — GIA did not test it.\u003c\/li\u003e\n\u003cli\u003eA substantial stone — see it first via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 style=\"margin-top: 0;\"\u003eLearn More About This Gemstone\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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-be\/blogs\/information-pages-complete-guide\/cushion-cut-sapphire-guide\"\u003eCushion Cut Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/blue-sapphire-buyers-guide\"\u003eBlue Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Report #2235949149, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42887340752963,"sku":"CG8298","price":4990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_62fe3059-58b5-493a-b34c-778eb031f2ed.jpg?v=1778308046"},{"product_id":"1-03-ct-natural-untreated-color-change-sapphire","title":"1.03 ct Natural Unheated Color-Change Sapphire – Emerald Cut | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 1.03 ct \u003cstrong\u003ecolour-change sapphire\u003c\/strong\u003e, emerald cut, \u003cstrong\u003eunheated\u003c\/strong\u003e, from \u003cstrong\u003eSri Lanka (Ceylon)\u003c\/strong\u003e, on \u003cstrong\u003eAGCL Report #M263506\u003c\/strong\u003e. The report records the shift as green under daylight to reddish purple under incandescent light — a phenomenon from trace vanadium. Unheated colour-change at just over a carat from Ceylon is an unusual, well-specified example.\u003c\/p\u003e\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-be\/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\"Genuine, lab-documented color-change sapphire is one of the rarest phenomena in the sapphire family — in my experience, on par with star sapphire for scarcity, because the vanadium chemistry needed to produce a clean shift between daylight and incandescent light rarely lines up this well. This stone's AGCL-documented change from green to reddish purple is unusually well-defined, and the fact that it's unheated matters even more here, since heat treatment is known to weaken or destroy the color-change effect entirely.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e confirm report #M263506, its weight and measurements against the stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe colour change is on the report\u003c\/strong\u003e (green to reddish purple) — see it shift between daylight and incandescent light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003eSee it first via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\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-be\/blogs\/information-pages-complete-guide\/color-change-sapphire-guide\"\u003eColor-Change Sapphire — The Phenomenon Stone That Shifts Before Your Eyes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/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=\"\/en-be\/blogs\/information-pages-complete-guide\/natural-sapphires-online-premium-gemstones\"\u003eHow to Buy Natural Sapphires Online: What Certification Actually Tells You\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eHow to Commission a Custom Ring — From Loose Stone to Finished Piece\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-be\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eThe Ultimate Guide to Buying Natural Loose Sapphires\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with AGCL Report #M263506, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43031904518211,"sku":"CG8412","price":824.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_0b7c91d9-1004-4ae0-9c8f-6ce83422f6d3.jpg?v=1778308074"},{"product_id":"1-14-ct-cushion-pale-blue-ceylon-blue-sapphire-unheated","title":"1.14 ct Natural Unheated Light Blue Sapphire – Rectangle Cushion, Mixed Cut | AGCL Report M263769","description":"\u003cp\u003eA natural sapphire of \u003cstrong\u003e1.14 cts\u003c\/strong\u003e, colour \u003cstrong\u003eLight Blue\u003c\/strong\u003e, shape Rectangle Cushion and cut Mixed Cut, with the comment \u003cstrong\u003eNo Indication of Heating (Un-Heated)\u003c\/strong\u003e, as recorded on AGCL (Arctic Gem Certification \u0026amp; Laboratory) Gemstone Report M263769, dated 16 March 2026; it is a single loose stone for a solitaire ring or a pendant. It was mined and bought in Sri Lanka, which is our own sourcing record and not a laboratory finding (the AGCL report has no origin field), and in our own assessment it is eye-clean face-up, with inclusions visible under magnification.\u003c\/p\u003e\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-be\/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\"This is one sapphire of 1.14 cts. Its report gives the colour as Light Blue, the shape as Rectangle Cushion and the cut as Mixed Cut, and those are the words I use for it too. I offer it as the centre stone of a solitaire ring or for a pendant. If you would like more photographs or a video before you decide, ask me.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e check report M263769, the weight of 1.14 cts and the dimensions of 6.10 x 4.76 x 4.26 mm against the stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat \"unheated\" covers:\u003c\/strong\u003e No Indication of Heating (Un-Heated) is a finding about heating only; heating is the only treatment the report addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e a rectangular cushion of this size suits a solitaire ring or a pendant. That is our suggestion, not the report's.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e sapphire is corundum, which is 9 on the Mohs scale. That is a property of the species, not something the report records.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping, Returns \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eShipping cost for your country is shown at checkout; any import duties or taxes are paid on delivery.\u003c\/li\u003e\n\u003cli\u003e14-day money-back guarantee.\u003c\/li\u003e\n\u003cli\u003eShips with AGCL Report M263769, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43046415007811,"sku":"CG8426","price":456.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_53ac78ce-e64b-41d6-9c1b-ddc9e673c1d3.jpg?v=1778308097"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/1112023217_6ea1c306-9126-4bf6-9da3-ec26a785f0f5-1776781990.jpg?v=1781260403","url":"https:\/\/crescentgems.com\/en-be\/collections\/untreated-blue-sapphires-unheated-ceylon-loose-stones.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}