{"product_id":"2-90ct-cobalt-blue-spinel-gemstone-natural-untreated-faceted-collectors-stone","title":"2.90ct Cobalt Blue Spinel Gemstone: Natural Untreated Faceted Collector's Stone","description":"2.90ct Cobalt Blue Spinel – Natural Untreated Gemstone, Intense Blue Hue\n\n⸻\n\n2. Description\n\nMineral:\nSpinel – Cobalt-bearing variety\n\nDescription:\nThis 2.90 carat cobalt spinel features a striking, electric blue color—intensely saturated and highly desirable. Naturally colored by cobalt, this gem is unheated and showcases excellent brilliance through expert faceting. With a compact, weighty build and top-tier luster, it’s an ideal choice for fine custom jewelry or a rare gem collection. Cobalt spinels are exceptionally rare in nature, particularly with such pure and vivid coloring. A true collector’s piece.\n\nWeight and Dimensions:\n\t•\tWeight: 2.90 carats | 0.58 grams | 0.020 ounces\n\t•\tDimensions: 9.5x7x6.5 mm\n\n\n\nLocality:\n(Please confirm origin – common sources include Sri Lanka, Vietnam, or Tanzania.)\n\n⸻\n\n\n\ncobalt spinel,\nblue spinel gem,\nnatural spinel,\nvivid blue gem,\nunheated spinel,\ncollector gemstone,\nloose spinel,\nspinel for ring,\nrare blue gem,\nfaceted spinel,\nspinel crystal,\ngemstone collector,\ninvestment gem,","brand":"Faran Gems","offers":[{"title":"Default Title","offer_id":56600273453361,"sku":null,"price":1550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5516\/6513\/files\/e6f4793a-il_fullxfull.7131015487_qktv.jpg?v=1791040431","url":"https:\/\/farangems.com\/products\/2-90ct-cobalt-blue-spinel-gemstone-natural-untreated-faceted-collectors-stone","provider":"Faran Gems","version":"1.0","type":"link"}