{"product_id":"3-54ct-etw-earth-mined-bluish-green-grandidierite-octagon-cut-rare-gemstone","title":"3.54ct ETW Earth-Mined Bluish Green Grandidierite – Octagon Cut, Rare Gemstone","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3.54ct ETW Earth-Mined Bluish Green Grandidierite – Octagon Cut, Rare Gemstone\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis distinctive 3.54-carat earth-mined grandidierite from Madagascar features attractive bluish green coloration and an elegant octagon cut. Its rarity, substantial size, and unusual color make it an appealing addition to a gemstone collection or custom jewelry design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGemstone:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Bluish Green Grandidierite\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCarat Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.54ct ETW\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCut:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Octagon Cut\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 11.0 x 9.0 x 4.5 mm\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eClarity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Opaque\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eTreatment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Unheated\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eOrigin:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Madagascar\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e New\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eEarth-mined Madagascar grandidierite weighing 3.54ct ETW in an octagon cut, featuring opaque clarity, natural bluish green coloration, and unheated character.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrandidierite is a rare magnesium aluminum borosilicate mineral prized for its distinctive blue-green coloration. It is considered an unusual collector gemstone due to its limited availability and restricted geological occurrence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis specimen displays attractive bluish green tones in a geometric octagon shape. Its opaque clarity emphasizes its natural color and solid appearance rather than transparent brilliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMadagascar is the best-known source of gem-quality grandidierite, producing specimens that attract mineral enthusiasts and gemstone collectors worldwide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis gemstone is unheated and untreated, retaining its naturally occurring coloration without artificial enhancement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt 3.54 carats and measuring 11.0 x 9.0 x 4.5 mm, this grandidierite offers attractive proportions for a custom pendant or collector's display. Its octagon cut provides a refined geometric appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrandidierite has a Mohs hardness of approximately 7 to 7.5, offering reasonable durability with appropriate care. Protective settings are recommended for jewelry applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis individual Madagascar grandidierite combines rarity, distinctive bluish green coloration, and elegant octagon-cut styling in an unusual earth-mined gemstone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(Stock Code: ABMM)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeywords: loose gemstone, earth-mined grandidierite, natural grandidierite, Madagascar grandidierite, Madagascar gemstone, bluish green gemstone, octagon cut grandidierite, opaque grandidierite, unheated grandidierite, untreated grandidierite, 3.54ct grandidierite, rare gemstone, collector gemstone, natural mineral, custom pendant gemstone\u003c\/span\u003e\u003c\/p\u003e","brand":"West Coast Gemstones","offers":[{"title":"Default Title","offer_id":68595193807129,"sku":null,"price":124.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/9196\/9305\/files\/3.54ctETWEarth-MinedBluishGreenGrandidierite_OctagonCut_RareGemstone.webp?v=1794241351","url":"https:\/\/westcoastgemstones.com\/products\/3-54ct-etw-earth-mined-bluish-green-grandidierite-octagon-cut-rare-gemstone","provider":"West Coast","version":"1.0","type":"link"}