{"product_id":"6-48-ct-nigerian-gray-tourmaline-precision-round-cut","title":"6.48 ct Nigerian Gray Tourmaline — Precision Round Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eAn unusually colored Nigerian tourmaline with a predominantly gray body color and subtle green flashes as the stone moves. The precision round modified brilliant cut produces a crisp, symmetrical face-up pattern and strong optical performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Tourmaline\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.48 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Round Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 12.08–12.05 × 7.67 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Gray with faint green hints\u003cbr\u003e\u003cstrong\u003eTransparency:\u003c\/strong\u003e Transparent\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Nigeria\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 34\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eTourmaline comes in more colors than almost any other gem, and this stone’s color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTourmaline is suitable for jewelry wear with reasonable care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221946892535,"sku":"OTZ-2026-01679","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01679-tourmaline-1.jpg?v=1790463745","url":"https:\/\/otzera.com\/products\/6-48-ct-nigerian-gray-tourmaline-precision-round-cut","provider":"Otzera","version":"1.0","type":"link"}