{"product_id":"45mm-oregon-sunstones-round-54932","title":"4.5mm Oregon Sunstones | Round Exceptional Cut | Medium, Light, or with Schiller | Per Stone","description":"\u003cp\u003eOregon Sunstone is one of the only gemstones with an exclusively American origin, mined from the volcanic basalt flows of Harney and Lake Counties in Oregon. A variety of andesine-labradorite feldspar, these stones form naturally in a range of colors driven by trace copper content — from near-colorless and pale yellow to warm peach and salmon tones. Their domestic provenance and limited supply make them a standout choice for designers seeking a genuinely rare, traceable gemstone with a compelling origin story.\u003c\/p\u003e\n\u003cp\u003eThese 4.5mm faceted rounds are available in three distinct expressions: medium color (warm peachy-orange tones, no schiller), light color (soft, delicate hues, no schiller), and schiller (aventurescence created by copper platelets that catch and reflect light from within the stone). Each option offers a different design opportunity — from subtle sophistication to bold metallic flash — and the calibrated 4.5mm round cut ensures easy setting compatibility across standard findings and bezels.\u003c\/p\u003e\n\u003cp\u003e**This listing is for ONE stone. You select the color and I will pick the best stone that I have in stock. Please message me if you have specific requests.\u003c\/p\u003e\n\u003cp\u003eDETAILS\u003cbr\u003e\nOrigin: Oregon, USA\u003cbr\u003e\nSpecies: Feldspar\u003cbr\u003e\nVariety: Oregon Sunstone (Andesine-Labradorite)\u003cbr\u003e\nCut: Faceted Round, exceptional quality cut\u003cbr\u003e\nSize: 4.5mm\u003cbr\u003e\nWeight: Approximately 0.40 ct per stone\u003cbr\u003e\nSold: Individually (multiple color options available)\u003cbr\u003e\nTreatment: None\u003cbr\u003e\nHardness: 6 – 6.5 (Mohs)\u003cbr\u003e\nRefractive Index: 1.559 – 1.568\u003c\/p\u003e\n\u003cp\u003eMaterials: Oregon Sunstone.\u003c\/p\u003e","brand":"Gem Enthusiast","offers":[{"title":"Medium","offer_id":47564648874171,"sku":"4.5OSF-Medium","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Light","offer_id":47564648906939,"sku":"4.5OSF-Light","price":20.0,"currency_code":"USD","in_stock":true},{"title":"With Schiller","offer_id":47564648939707,"sku":"4.5OSF-Schiller","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/8214\/1627\/files\/il_fullxfull.7860528753_e7py.jpg?v=1774631485","url":"https:\/\/gementhusiast.shop\/products\/45mm-oregon-sunstones-round-54932","provider":"Gem Enthusiast","version":"1.0","type":"link"}