{"product_id":"montana-sapphire-cabochon-4mm-round-per-stone-teal-blue-light-blue-green-pale-purple-sa305","title":"Montana Sapphire Cabochon — 4mm Round | Per Stone | Teal-Blue, Light Blue, Green \u0026 Pale Purple | SA305","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eListing is for one stone — select S1, S2, S3, or S4 at checkout.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRound 4mm cabochon-cut Montana sapphires, offered as individual stones in four distinct colors — select your preferred stone at checkout. Montana sapphire is among the most coveted domestically sourced gems in the American market, produced from alluvial and primary deposits in the Missouri River drainage and the Rock Creek and Dry Cottonwood Creek districts of western Montana. Montana material is immediately distinguishable from the dominant commercial sapphires of Sri Lanka, Madagascar, and Thailand by its color palette — the steely, metallic, and parti-colored tones unique to this origin are a direct product of the deposit's distinct trace element chemistry and are not reliably replicated by material from any other source. For designers and buyers prioritizing American provenance, Montana sapphire is the benchmark domestic colored stone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Montana, USA \u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eVariety:\u003c\/strong\u003e Sapphire\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e Cabochon, round\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 4mm diameter (\u003cspan style=\"color: #000000; font-family: Helvetica Neue; font-size: small;\"\u003e4.1mm x 4.1mm x 2.3mm)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eAvailable:\u003c\/strong\u003e S1 Teal-Blue | S2 Light Blue | S3 Green | S4 Pale Purple\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eSold:\u003c\/strong\u003e Individually\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat Treated\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 9 Mohs\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eRefractive Index:\u003c\/strong\u003e 1.762–1.770\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e ~.44 carats per stone\u003c\/div\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Gem Enthusiast","offers":[{"title":"Teal","offer_id":47553275592891,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":47553275625659,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":47553275658427,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Purple","offer_id":47553275691195,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/8214\/1627\/files\/montana-sapphire-cabochon-4mm-round-per-stone-teal-blue-light-blue-green-pale-purple-sa305-2274592.jpg?v=1773725114","url":"https:\/\/gementhusiast.shop\/products\/montana-sapphire-cabochon-4mm-round-per-stone-teal-blue-light-blue-green-pale-purple-sa305","provider":"Gem Enthusiast","version":"1.0","type":"link"}