{"product_id":"1-64-ct-square-cushion-violet-sapphire-unheated","title":"1.64 ct Natural Unheated Violet Sapphire – Square Cushion","description":"\u003cp\u003eA natural 1.64 carat violet sapphire in a square cushion shape with Mixed Cut faceting, completely unheated and certified by AGCL (Arctic Gem Certification \u0026amp; Laboratory), Report #M263508. This is a clean, true violet — corundum's purple-family color caused by trace vanadium and chromium — at a substantial size that reads clearly as a center stone rather than an accent. Unheated status, confirmed by the AGCL report, means this color is exactly as the stone formed.\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\"What stands out on this stone is the purity of the violet — no gray or brown undertone muddying it — at a full 1.64 carats unheated, which is a substantial center-stone weight to find in this color completely untreated.\"\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\u003eWithin the sapphire family, violet occupies a narrow color window that few production stones ever land in cleanly, and this stone's rarity comes from several independent factors stacking together rather than any single trait.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Violet is a genuinely uncommon sapphire color, sitting on the corundum color wheel between blue and pink\/purple — most corundum production skews toward blue, pink, or yellow, with clean true violet far less frequently encountered.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Most violet sapphires reaching the market in eye-clean, well-cut condition run well under a carat; at 1.64 carats, this stone is large enough to function as a true center stone rather than an accent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e The large majority of commercial sapphire is heat-treated to improve color; this stone carries no such treatment, with AGCL Report #M263508 confirming no indication of heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Graded eye-clean, with no inclusions visible to the naked eye under normal viewing — a level of clarity not automatically present in an unheated stone, since heat treatment is often used industry-wide to improve the apparent clarity of included material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e AGCL Report #M263508 independently confirms the unheated status, weight, and dimensions, giving buyers verification that isn't available for undocumented stones sold on color claims alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e An uncommon color, a substantial carat weight, no heat treatment, strong clarity, and independent lab documentation rarely converge in one stone — it's this combination, not any single factor, that makes a stone like this difficult to replace once sold.\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\u003eView it in a few different light sources.\u003c\/strong\u003e Violet sapphire can shift subtly between daylight and warm indoor lighting — check the stone under both before deciding on a setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around a square cushion outline.\u003c\/strong\u003e At 6.56 x 6.48 x 4.40 mm, this stone will need a mounting sized to its squared corners; a four-prong or bezel setting that protects the corners is worth discussing with your jeweler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm treatment disclosure when comparison shopping.\u003c\/strong\u003e Not every violet or purple sapphire on the market discloses heat treatment as clearly as AGCL Report #M263508 does here — always ask for the lab report, not just a verbal claim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh the rarity against availability.\u003c\/strong\u003e Given the color, size, and unheated combination outlined above, a directly comparable stone may not surface again soon — factor that into your timeline if you're deciding between several options.\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\n\u003cul\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 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\/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=\"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\"\u003eViolet vs. Purple vs. Blue Sapphire Comparison\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;\"\u003eCG8418\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;\"\u003e1.64 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 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;\"\u003eSquare Cushion, Mixed 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;\"\u003e6.56 x 6.48 x 4.40 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;\"\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\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;\"\u003eEye-clean\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 Gemstone Report #M263508\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 1.64 ct Unheated Violet Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eViolet sapphire is a genuinely uncommon color in the sapphire family, sitting between blue and pink\/purple on the corundum color wheel. At 1.64 carats unheated, this square cushion is large enough to serve as a real center stone while offering the rarity that comes with a natural, untreated violet hue independently documented by AGCL Report #M263508.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural Violet Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompletely Unheated\u003c\/strong\u003e\u003cbr\u003eNo thermal treatment — AGCL Report #M263508 confirms no indication of heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Violet Color\u003c\/strong\u003e\u003cbr\u003eA clean, uncommon violet hue in the sapphire family, independently graded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Cushion, Mixed Cut\u003c\/strong\u003e\u003cbr\u003eFaceting designed to maximize brightness and color evenness across the face-up view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter-Stone Weight\u003c\/strong\u003e\u003cbr\u003eAt 1.64 carats, substantial enough to anchor a ring or pendant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable for Daily Wear\u003c\/strong\u003e\u003cbr\u003eCorundum at Mohs 9, second only to diamond.\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: 1.64 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Violet Sapphire\u003c\/li\u003e\n\u003cli\u003eVariety: Violet Sapphire\u003c\/li\u003e\n\u003cli\u003eShape: Square Cushion\u003c\/li\u003e\n\u003cli\u003eCut Style: Mixed Cut\u003c\/li\u003e\n\u003cli\u003eDimensions: 6.56 x 6.48 x 4.40 mm\u003c\/li\u003e\n\u003cli\u003eTreatment: Unheated\u003c\/li\u003e\n\u003cli\u003eColor: Violet\u003c\/li\u003e\n\u003cli\u003eClarity: Eye-clean — no visible inclusions under normal viewing\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003eCertification: AGCL Gemstone Report #M263508\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis violet sapphire has been hand-selected for the clarity and evenness of its color — the quality that defines a genuine violet sapphire center stone.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eOne of a Kind\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a single natural gemstone, not a manufactured or lab-created replica — no two sapphires form with identical color, clarity, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the AGCL report is the exact, individual stone you receive.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eSapphire is exceptionally durable (Mohs 9), but a few habits keep it looking its best. Clean with warm water, mild soap, and a soft brush; avoid ultrasonic or steam cleaners if the stone is set alongside softer or treatment-sensitive materials. Store separately from other jewelry to prevent surface scratches to softer pieces, and remove the stone before swimming, exercising, or household chemical exposure. As an unheated stone, no thermal treatment stabilizes the color — normal wear is fine, but avoid sudden extreme temperature changes.\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\u003eUnheated Violet:\u003c\/strong\u003e Natural color, independently verified — no thermal enhancement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuinely Uncommon:\u003c\/strong\u003e True violet is one of the rarer colors in the sapphire family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter-Stone Ready:\u003c\/strong\u003e Sized to anchor an engagement ring or statement pendant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Treatment disclosed honestly and independently certified by AGCL (Report #M263508).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 1.64 ct violet sapphire means choosing a genuinely uncommon, natural, unheated color with independent lab documentation.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 1.64 ct Violet Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eEngagement ring center stone\u003c\/li\u003e\n\u003cli\u003eStatement pendant\u003c\/li\u003e\n\u003cli\u003eCustom jewelry design\u003c\/li\u003e\n\u003cli\u003eCollectors of unheated violet sapphires\u003c\/li\u003e\n\u003cli\u003eDistinctive anniversary or milestone gift\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43031932338243,"sku":"CG8418","price":1312.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_96770003-04c0-41df-85eb-84156bd6bc39.jpg?v=1779989967","url":"https:\/\/crescentgems.com\/products\/1-64-ct-square-cushion-violet-sapphire-unheated","provider":"Crescent Gems","version":"1.0","type":"link"}