{"product_id":"black-opal-poison-ring","title":"Black Opal Poison Ring","description":"\u003cp\u003eBlack opal is distinguished by a dark, gray-to-black body tone, which provides a dramatic contrast. This deep background acts like a canvas, making its vibrant internal flashes of color—such as red, blue, green, and gold—appear significantly more vivid than in lighter opals.\u003c\/p\u003e\n\u003cp\u003eNatural black opals are very rare. All black opal at Calcifur's Crystals are heat treated white opals.\u003c\/p\u003e\n\u003cp\u003eThis stone is approximately 9x7mm and is set into an adjustable sterling silver poison ring. It is adjustable and will best fit sizes 7 - 9.\u003c\/p\u003e","brand":"Calcifur's Crystals","offers":[{"title":"Default Title","offer_id":49183056167064,"sku":null,"price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/7128\/2584\/files\/20260531-092829.jpg?v=1780266059","url":"https:\/\/calcifurscrystals.com\/products\/black-opal-poison-ring","provider":"Calcifur's Crystals","version":"1.0","type":"link"}