{"product_id":"1-13-ct-radiant-white-sapphire-colorless-untreated","title":"1.13 ct Natural Unheated White Sapphire – Radiant Cut | AGCL Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 1.13 carat white sapphire in a radiant cut, colorless and untreated, documented on AGCL Report #M263118. Radiant-cut colorless sapphire at 1.13 carats is a practical, modern diamond alternative — the radiant's cropped corners and brilliant faceting produce strong light return in colorless material, and the rectangular silhouette gives it a more structured, contemporary look than a round brilliant. At Mohs 9, white sapphire is the hardest colorless gemstone alternative to diamond, fully appropriate for daily ring wear.\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\"At 1.13 ct, this radiant-cut white sapphire is sized to carry as a genuine engagement-ring center stone rather than an accent — and the radiant cut gives it noticeably more brilliance than a step-cut shape in this same color. Loupe-clean clarity at this size is worth noting; it's not a given in colorless corundum.\"\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\u003cp\u003eWhat makes this particular stone stand out:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Natural colorless corundum, with no heat treatment applied to achieve or improve the colorless appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1.13 ct sits within the standard center-stone range for rings, a size where clean colorless material is harder to source than smaller melee-sized stones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e AGCL Report #M263118 confirms no indication of heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Graded loupe-clean, meaning no visible inclusions even under magnification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Independently lab-certified with weight, shape, and treatment status confirmed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e an untreated, loupe-clean, over-1-carat colorless sapphire is a smaller pool than the general white sapphire market, most of which is heat-treated to remove residual color.\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\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting compatibility:\u003c\/strong\u003e at 6.3 x 4.86 mm, this radiant cut needs a setting sized for its rectangular outline, not a round mounting — confirm with your jeweler or use our custom ring service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond alternative comparison:\u003c\/strong\u003e white sapphire is harder than most diamond simulants but reads slightly less brilliant than diamond; view in person or via video if brilliance is a deciding factor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner protection:\u003c\/strong\u003e radiant cuts have corners that benefit from protective prong or bezel placement in daily-wear settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e retain the AGCL report as the primary record of treatment status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand 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\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/white-sapphire-buyers-guide\"\u003eWhite 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 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\/sapphire-vs-diamond-engagement-rings-the-real-differences-and-how-to-choose-the-right-sapphire\"\u003eWhite Sapphire vs Diamond\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;\"\u003eCG8392\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;\"\u003e1.13 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 — White (Colorless) 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;\"\u003eRadiant (Octagonal), Radiant Cut\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;\"\u003e6.3 x 4.86 x 3.90 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;\"\u003eWhite (Colorless)\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;\"\u003eNone\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 Indication of Heating per AGCL Report #M263118\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) (store's own assessment; not addressed by the AGCL report)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eLoupe Clean — eye-clean, no visible inclusions under normal viewing\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;\"\u003eAGCL Report #M263118\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 1.13 ct Radiant White Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eRadiant-cut white sapphire balances the brilliance of a round brilliant with the structured outline of a rectangular step cut — more sparkle than an emerald cut, more architectural presence than a round. At 1.13 carats, this is in the standard center stone range for engagement rings and pendants, and untreated status confirms the colorlessness is entirely natural.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural White Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUntreated Natural Colorless\u003c\/strong\u003e\u003cbr\u003eNo heat treatment — natural colorless corundum exactly as found.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadiant Cut Balance\u003c\/strong\u003e\u003cbr\u003eBrilliant faceting in a rectangular outline — more sparkle than step cuts, more structure than rounds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs 9 Hardness\u003c\/strong\u003e\u003cbr\u003eSecond hardest natural material — appropriate for daily ring wear without special care.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone Size\u003c\/strong\u003e\u003cbr\u003e1.13 carats — practical weight for engagement ring and pendant center stone use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural Diamond Alternative\u003c\/strong\u003e\u003cbr\u003eColorless, hard, untreated — without the diamond price point.\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: 1.13 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural White Sapphire\u003c\/li\u003e\n\u003cli\u003eShape: Radiant (Octagonal)\u003c\/li\u003e\n\u003cli\u003eCut Style: Radiant Cut\u003c\/li\u003e\n\u003cli\u003eTreatment: Unheated — No Indication of Heating per AGCL Report #M263118\u003c\/li\u003e\n\u003cli\u003eColor: White (Colorless)\u003c\/li\u003e\n\u003cli\u003eClarity: Loupe Clean — eye-clean, no visible inclusions under normal viewing\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon) (store's own assessment; not addressed by the AGCL report)\u003c\/li\u003e\n\u003cli\u003eCertification: AGCL Report #M263118\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 1.13 ct radiant white sapphire has been hand-selected for colorlessness and loupe-clean clarity — the qualities that define an effective colorless center stone in any setting.\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\u003eUntreated Colorless:\u003c\/strong\u003e Natural — no coating or enhancement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadiant Balance:\u003c\/strong\u003e The middle ground between sparkle and structure for colorless center stones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Alternative Hardness:\u003c\/strong\u003e Mohs 9 for daily wear durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Untreated status disclosed honestly, selected for colorlessness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 1.13 ct radiant white sapphire means choosing the most durable colorless diamond alternative in the cut that balances brilliance and architectural presence.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 1.13 ct White Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eEngagement ring center stone — diamond alternative\u003c\/li\u003e\n\u003cli\u003ePendant solitaire\u003c\/li\u003e\n\u003cli\u003eModern minimalist ring design\u003c\/li\u003e\n\u003cli\u003eEast-west bezel setting\u003c\/li\u003e\n\u003cli\u003eSeptember birthstone gift\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43022394458179,"sku":"CG8392","price":2528.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_6e17b77e-404e-4889-8be3-71c1f03bda99.jpg?v=1778308046","url":"https:\/\/crescentgems.com\/en-gcc\/products\/1-13-ct-radiant-white-sapphire-colorless-untreated","provider":"Crescent Gems","version":"1.0","type":"link"}