{"product_id":"4-91ct-etw-earth-mined-bluish-green-grandidierite-oval-cut-rare-gemstone","title":"4.91ct ETW Earth-Mined Bluish Green Grandidierite – Oval Cut, Rare Gemstone","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4.91ct ETW Earth-Mined Bluish Green Grandidierite – Oval Cut, Rare Gemstone\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis rare 4.91-carat earth-mined bluish green grandidierite from Madagascar features distinctive coloration and a classic oval cut. Its unusual mineral identity and attractive proportions make it an interesting 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 4.91ct ETW\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCut:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Oval Cut\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12.0 x 9.7 x 7.0 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 bluish green grandidierite weighing 4.91ct ETW in an oval cut from Madagascar, featuring opaque clarity 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 to greenish blue coloration. Its unusual mineral composition and limited occurrence make it particularly interesting to gemstone collectors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMadagascar is the best-known source of gem-quality grandidierite, producing specimens in attractive bluish green hues. The gemstone's distinctive color makes it an uncommon alternative to more familiar blue and green gemstones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis specimen is unheated, retaining its naturally occurring coloration without enhancement. Its opaque clarity emphasizes the gemstone's solid color and natural appearance rather than transparency or internal brilliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt 4.91 carats and measuring 12.0 x 9.7 x 7.0 mm, this grandidierite offers attractive proportions for a custom pendant, distinctive jewelry design, or mineral collection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrandidierite has a Mohs hardness of approximately 7 to 7.5, providing reasonable resistance to scratching with appropriate care. Protective settings and careful handling are recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis individual Madagascan grandidierite combines rare mineral identity, attractive bluish green coloration, and natural unheated character in a distinctive collector 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, bluish green grandidierite, Madagascar grandidierite, Madagascar gemstone, oval cut grandidierite, opaque grandidierite, unheated grandidierite, unheated gemstone, 4.91ct grandidierite, rare gemstone, collector gemstone, natural blue green gemstone, custom pendant gemstone\u003c\/span\u003e\u003c\/p\u003e","brand":"West Coast Gemstones","offers":[{"title":"Default Title","offer_id":68642813608217,"sku":null,"price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/9196\/9305\/files\/4.91ctETWEarth-MinedBluishGreenGrandidierite_OvalCut_RareGemstone.webp?v=1794496185","url":"https:\/\/westcoastgemstones.com\/products\/4-91ct-etw-earth-mined-bluish-green-grandidierite-oval-cut-rare-gemstone","provider":"West Coast","version":"1.0","type":"link"}