{"product_id":"oval-buff-top-double-bevel-black-onyx-cabochon-with-hole","title":"Oval Buff Top Double Bevel Genuine Black Onyx With Hole","description":"\u003cp\u003e\u003cstrong\u003eBlack Onyx, also known as black agate, is dyed black chalcedony.\u003c\/strong\u003e Chalcedony is composed of microscopic quartz crystals not visible to the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony available commercially is grey chalcedony that has been chemically treated to achieve its signature deep, opaque black color. Black Onyx is the top-selling chalcedony in the market and was a hallmark material in Art Deco jewelry design. These oval buff top double bevel cabochons feature a pre-drilled hole, making them ready for a variety of setting and stringing applications.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine black onyx cabochons with uniform opaque black color\u003c\/li\u003e\n\u003cli\u003eOval buff top with double bevel profile\u003c\/li\u003e\n\u003cli\u003ePre-drilled hole for versatile use in jewelry applications\u003c\/li\u003e\n\u003cli\u003eDyed black chalcedony — chemically treated for consistent, deep black appearance\u003c\/li\u003e\n\u003cli\u003eClean with warm, soapy water; ultrasonic and steam cleaning are generally safe\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eBlack Onyx (dyed black chalcedony)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003ctd\u003eBuff top, double bevel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003ctd\u003ePre-drilled hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003ctd\u003eDyed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOpacity\u003c\/th\u003e\n\u003ctd\u003eOpaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eUniform black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCare\u003c\/th\u003e\n\u003ctd\u003eWarm soapy water; ultrasonic and steam cleaning are generally safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eStone Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e947-851\u003c\/td\u003e\n\u003ctd\u003e9mm x 7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e947-853\u003c\/td\u003e\n\u003ctd\u003e14mm x 12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"9mmx7mm","offer_id":43834357711062,"sku":"947-851","price":5.5,"currency_code":"USD","in_stock":false},{"title":"14mmx12mm","offer_id":43834357678294,"sku":"947-853","price":3.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/oval-buff-top-double-bevel-genuine-black-onyx-with-hole-otto-frei.jpg?v=1719954522","url":"https:\/\/www.ottofrei.com\/products\/oval-buff-top-double-bevel-black-onyx-cabochon-with-hole","provider":"Otto Frei","version":"1.0","type":"link"}