{"product_id":"12-21-ct-natural-green-tourmaline-octagon-step-cut-gfco-certified-green-tourmaline","title":"12.21 Ct Natural Green Tourmaline | Octagon Step Cut | GFCO Certified Green Tourmaline","description":"\u003ch2 data-section-id=\"1bw7wp4\" data-start=\"106\" data-end=\"128\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003e2250\u003c\/p\u003e\n\u003cp data-start=\"130\" data-end=\"417\"\u003eA remarkable \u003cstrong data-start=\"143\" data-end=\"183\"\u003e12.21 carat Natural Green Tourmaline\u003c\/strong\u003e featuring a rich forest-green color and an elegant octagonal step-cut design. Accompanied by a \u003cstrong data-start=\"279\" data-end=\"307\"\u003eGFCO Gem Lab Certificate\u003c\/strong\u003e, this impressive gemstone displays exceptional transparency, sophisticated cutting, and outstanding presence.\u003c\/p\u003e\n\u003cp data-start=\"419\" data-end=\"743\"\u003eTourmaline is one of the most versatile and highly prized gemstone families, celebrated for its wide range of colors and exceptional brilliance. Green tourmalines are particularly sought after for their vibrant natural color, durability, and attractive appearance that rivals many of the world's most famous green gemstones.\u003c\/p\u003e\n\u003cp data-start=\"745\" data-end=\"1156\"\u003eThis gemstone has been fashioned into a refined octagonal step cut, showcasing crisp facet junctions, excellent symmetry, and beautiful internal reflections. The elongated rectangular shape enhances the stone's visual size while maximizing color depth and elegance. The step-cut faceting creates a sophisticated hall-of-mirrors effect that highlights the gemstone's rich green saturation and remarkable clarity.\u003c\/p\u003e\n\u003cp data-start=\"1158\" data-end=\"1375\"\u003eWith a substantial weight of \u003cstrong data-start=\"1187\" data-end=\"1203\"\u003e12.21 carats\u003c\/strong\u003e, this gemstone offers impressive visual impact and is ideally suited for high-end custom jewelry creations, collector portfolios, or investment-grade gemstone collections.\u003c\/p\u003e\n\u003cp data-start=\"1377\" data-end=\"1535\"\u003eIts deep green color, large size, and professional certification make it a highly desirable gemstone for those seeking a statement piece with timeless appeal.\u003c\/p\u003e\n\u003chr data-start=\"1537\" data-end=\"1540\"\u003e\n\u003ch2 data-section-id=\"y5ghnr\" data-start=\"1542\" data-end=\"1568\"\u003eGemstone Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1570\" data-end=\"1608\"\u003e\u003cstrong data-start=\"1570\" data-end=\"1583\"\u003eGemstone:\u003c\/strong\u003e Natural Green Tourmaline\u003c\/p\u003e\n\u003cp data-start=\"1610\" data-end=\"1641\"\u003e\u003cstrong data-start=\"1610\" data-end=\"1622\"\u003eSpecies:\u003c\/strong\u003e Natural Tourmaline\u003c\/p\u003e\n\u003cp data-start=\"1643\" data-end=\"1667\"\u003e\u003cstrong data-start=\"1643\" data-end=\"1654\"\u003eWeight:\u003c\/strong\u003e 12.21 Carats\u003c\/p\u003e\n\u003cp data-start=\"1669\" data-end=\"1687\"\u003e\u003cstrong data-start=\"1669\" data-end=\"1679\"\u003eShape:\u003c\/strong\u003e Octagon\u003c\/p\u003e\n\u003cp data-start=\"1689\" data-end=\"1712\"\u003e\u003cstrong data-start=\"1689\" data-end=\"1703\"\u003eCut Style:\u003c\/strong\u003e Step Cut\u003c\/p\u003e\n\u003cp data-start=\"1714\" data-end=\"1733\"\u003e\u003cstrong data-start=\"1714\" data-end=\"1728\"\u003eCrown Cut:\u003c\/strong\u003e Step\u003c\/p\u003e\n\u003cp data-start=\"1735\" data-end=\"1757\"\u003e\u003cstrong data-start=\"1735\" data-end=\"1752\"\u003ePavilion Cut:\u003c\/strong\u003e Step\u003c\/p\u003e\n\u003cp data-start=\"1759\" data-end=\"1798\"\u003e\u003cstrong data-start=\"1759\" data-end=\"1774\"\u003eDimensions:\u003c\/strong\u003e 16.95 × 10.13 × 7.38 mm\u003c\/p\u003e\n\u003cp data-start=\"1800\" data-end=\"1816\"\u003e\u003cstrong data-start=\"1800\" data-end=\"1810\"\u003eColor:\u003c\/strong\u003e Green\u003c\/p\u003e\n\u003cp data-start=\"1818\" data-end=\"1853\"\u003e\u003cstrong data-start=\"1818\" data-end=\"1839\"\u003eRefractive Index:\u003c\/strong\u003e 1.620 – 1.640\u003c\/p\u003e\n\u003cp data-start=\"1855\" data-end=\"1881\"\u003e\u003cstrong data-start=\"1855\" data-end=\"1876\"\u003eSpecific Gravity:\u003c\/strong\u003e 3.09\u003c\/p\u003e\n\u003cp data-start=\"1883\" data-end=\"1926\"\u003e\u003cstrong data-start=\"1883\" data-end=\"1903\"\u003eOptic Character:\u003c\/strong\u003e Doubly Refractive (DR)\u003c\/p\u003e\n\u003cp data-start=\"1928\" data-end=\"1967\"\u003e\u003cstrong data-start=\"1928\" data-end=\"1943\"\u003eTreatments:\u003c\/strong\u003e No indications reported\u003c\/p\u003e\n\u003cp data-start=\"1969\" data-end=\"2000\"\u003e\u003cstrong data-start=\"1969\" data-end=\"1987\"\u003eCertification:\u003c\/strong\u003e GFCO Gem Lab\u003c\/p\u003e\n\u003cp data-start=\"2002\" data-end=\"2029\"\u003e\u003cstrong data-start=\"2002\" data-end=\"2020\"\u003eReport Number:\u003c\/strong\u003e ADP36644\u003c\/p\u003e\n\u003cp data-start=\"2031\" data-end=\"2049\"\u003e\u003cstrong data-start=\"2031\" data-end=\"2040\"\u003eCode:\u003c\/strong\u003e 42030-45\u003c\/p\u003e\n\u003cp data-start=\"2051\" data-end=\"2084\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2067\"\u003eReport Date:\u003c\/strong\u003e 03 February 2026\u003c\/p\u003e\n\u003chr data-start=\"2086\" data-end=\"2089\"\u003e\n\u003ch2 data-section-id=\"kt3wgb\" data-start=\"2091\" data-end=\"2119\"\u003eWhy Choose This Gemstone?\u003c\/h2\u003e\n\u003cp data-start=\"2121\" data-end=\"2147\"\u003e✔ Natural Green Tourmaline\u003c\/p\u003e\n\u003cp data-start=\"2149\" data-end=\"2180\"\u003e✔ Impressive 12.21 Carat Weight\u003c\/p\u003e\n\u003cp data-start=\"2182\" data-end=\"2210\"\u003e✔ Elegant Octagonal Step Cut\u003c\/p\u003e\n\u003cp data-start=\"2212\" data-end=\"2237\"\u003e✔ Rich Forest Green Color\u003c\/p\u003e\n\u003cp data-start=\"2239\" data-end=\"2263\"\u003e✔ Excellent Transparency\u003c\/p\u003e\n\u003cp data-start=\"2265\" data-end=\"2287\"\u003e✔ Collector-Grade Size\u003c\/p\u003e\n\u003cp data-start=\"2289\" data-end=\"2316\"\u003e✔ Certified by GFCO Gem Lab\u003c\/p\u003e\n\u003cp data-start=\"2318\" data-end=\"2349\"\u003e✔ Ideal for Custom High Jewelry\u003c\/p\u003e\n\u003cp data-start=\"2351\" data-end=\"2377\"\u003e✔ Strong Investment Appeal\u003c\/p\u003e\n\u003cp data-start=\"2379\" data-end=\"2410\"\u003e✔ Rare Large Natural Tourmaline\u003c\/p\u003e","brand":"Saleh Sallom","offers":[{"title":"Default Title","offer_id":46896863609020,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/8428\/1532\/files\/hf_20260524_111804_b068e479-7a85-43b3-b62f-c651254a09b9.png?v=1780561925","url":"https:\/\/www.salehsallom.com\/products\/12-21-ct-natural-green-tourmaline-octagon-step-cut-gfco-certified-green-tourmaline","provider":"Saleh Sallom","version":"1.0","type":"link"}