{"product_id":"587-ct-sapphire-oval-cut-untreated-basalt-related","title":"5.87 ct Blue (Indigo) Sapphire – Oval Cut – Untreated – Basalt Related","description":"\u003cp class=\"p1\"\u003eThis 5.87 ct natural sapphire exhibits a deep, velvety indigo-blue hue with rich saturation and a refined oval cut that highlights its inner glow and balanced proportions. Certified by Lotus Gemology as \u003cspan class=\"s1\"\u003e\u003cb\u003euntreated\u003c\/b\u003e\u003c\/span\u003e, this stone retains its completely natural state—making it significantly rarer than heat-enhanced sapphires commonly found on the market.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIts medium-deep tone, transparent clarity, and well-executed crown and pavilion faceting give the sapphire an elegant face-up presence with smooth light return. The color type “Indigo Blue” is a coveted classification, known for its sophisticated dusk-like blue that appeals to collectors and designers seeking depth and refinement.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEvery gemstone offered by Sora Gems is professionally inspected inside Bangkok’s Jewelry Trade Center (JTC) to verify authenticity, treatment status, and quality.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003cb\u003ePerfect for:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eCustom engagement rings\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eHigh-end bespoke jewelry\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eCollectors seeking rare, fully untreated sapphires\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eInvestment-focused purchases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"p3\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003c\/span\u003e 5.87 carats\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eShape:\u003c\/b\u003e\u003c\/span\u003e Oval Cut\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eTreatment:\u003c\/b\u003e\u003c\/span\u003e Untreated (No Indications of Heating)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eOrigin:\u003c\/b\u003e\u003c\/span\u003e Basalt Related (commonly associated with regions such as Madagascar, Australia, Laos, Nigeria, etc.)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eColor:\u003c\/b\u003e\u003c\/span\u003e Indigo Blue—rich, medium-deep tone with strong saturation\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eClarity:\u003c\/b\u003e\u003c\/span\u003e Transparent\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eCertification:\u003c\/b\u003e\u003c\/span\u003e Lotus Gemology Report No. 5349-7669\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSourcing:\u003c\/b\u003e\u003c\/span\u003e Vetted at the JTC, Bangkok\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eShipping:\u003c\/b\u003e\u003c\/span\u003e Secure worldwide delivery\u003c\/p\u003e","brand":"Sora Gems","offers":[{"title":"Default Title","offer_id":52100498358577,"sku":"SA587OVUBRV01A","price":10999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9326\/5457\/files\/Screenshot_2025-12-10_at_8.47.49_AM.png?v=1765375067","url":"https:\/\/thesapphirerow.com\/products\/587-ct-sapphire-oval-cut-untreated-basalt-related","provider":"Sapphire Row","version":"1.0","type":"link"}