{"product_id":"5-39-ct-round-ceylon-color-change-sapphire-unheated-gia","title":"5.39 ct Round Ceylon Color change Sapphire , Unheated, GIA","description":"\u003cp\u003eThis 5.39-carat Ceylon Color change Sapphire  is a rare, completely unheated and untreated gemstone from Ceylon, certified by GIA. Round brilliant-cut, it shows a vivid blue body colour with a subtle shift under different lighting — the hallmark of a natural colour-change sapphire. Unheated stones of this size with GIA documentation are highly collectible, making it a remarkable centre stone for a statement engagement ring or investment piece. Blue sapphire is the September birthstone and a durable corundum at Mohs hardness 9.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose This 5.39 ct Ceylon Color change Sapphire ?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cp\u003eThis 5.39 ct Ceylon Color change Sapphire  is more than just a gemstone — it is a statement of elegance, rarity, and authenticity. Whether you are designing a custom engagement ring or a meaningful pendant, it offers vivid colour, brilliant sparkle, and natural character that holds its value over time.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Unheated \u0026amp; Untreated\u003c\/strong\u003e\u003cbr\u003eNo enhancements — pure, natural gemstone beauty in its original form.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimeless Investment\u003c\/strong\u003e\u003cbr\u003eUnheated blue sapphires are rare and hold long-term value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Jewelry Use\u003c\/strong\u003e\u003cbr\u003eIdeal for rings, necklaces, earrings, or bespoke creations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Blue Hue\u003c\/strong\u003e\u003cbr\u003eA natural blue that adds depth and sophistication to any design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSymbolic Meaning\u003c\/strong\u003e\u003cbr\u003eLong linked to wisdom, loyalty, and protection — the classic \"stone of wisdom\" and a favourite for engagement rings.\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: 5.39 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Colour-Change Sapphire (corundum)\u003c\/li\u003e\n\u003cli\u003eTreatment: Unheated \u0026amp; untreated\u003c\/li\u003e\n\u003cli\u003eColor: Colour-change Blue\u003c\/li\u003e\n\u003cli\u003eClarity: Excellent transparency and brilliance\u003c\/li\u003e\n\u003cli\u003eCut: Round brilliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eClean gemstones regularly to maintain brilliance\u003c\/li\u003e\n\u003cli\u003eStore each gemstone separately to avoid scratches\u003c\/li\u003e\n\u003cli\u003eRemove jewelry before heavy activities (sports, gardening, cleaning)\u003c\/li\u003e\n\u003cli\u003eAvoid dropping or knocking stones against hard surfaces\u003c\/li\u003e\n\u003cli\u003eUse \u003cstrong\u003elukewarm water + mild soap\u003c\/strong\u003e for most gemstones\u003c\/li\u003e\n\u003cli\u003eGently clean with a soft brush (like a toothbrush)\u003c\/li\u003e\n\u003cli\u003eRinse thoroughly and dry with a soft cloth\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners for delicate stones\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat's included with the gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGIA report verifying treatment status and origin\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 5.39 ct Colour-Change Blue Sapphire has been carefully selected to meet high gemological standards, ensuring quality, durability, and beauty.\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\u003eRare Natural Quality:\u003c\/strong\u003e Well-cut natural blue sapphires are increasingly hard to find.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrilliant Sparkle:\u003c\/strong\u003e Precision cutting enhances light return across the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for Custom Jewelry:\u003c\/strong\u003e A centerpiece that elevates any design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Selection:\u003c\/strong\u003e Each stone is chosen for authenticity and excellence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 5.39 ct Colour-Change Blue Sapphire means investing in a gemstone that blends natural beauty with long-term value.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect uses for this 5.39 ct Colour-Change Blue Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eEngagement rings\u003c\/li\u003e\n\u003cli\u003eAnniversary gifts (the 45th-anniversary gemstone)\u003c\/li\u003e\n\u003cli\u003eCustom luxury jewelry\u003c\/li\u003e\n\u003cli\u003eCollectors of natural sapphires\u003c\/li\u003e\n\u003cli\u003eAstrological or spiritual jewelry (Neelam)\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\/stone_CG8262_image-2.jpg?v=1778507548","url":"https:\/\/crescentgems.com\/products\/5-39-ct-round-ceylon-color-change-sapphire-unheated-gia","provider":"Crescent Gems","version":"1.0","type":"link"}