{"product_id":"oval-flat-top-double-bevel-black-onyx-cabochon-with-hole-12-14mm","title":"Oval Flat 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 that are not visible to the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony on the market is grey chalcedony that has been chemically treated to achieve its characteristic deep, shiny black color. Black Onyx is the top-selling chalcedony in the gemstone market and was a hallmark material in Art Deco jewelry design. These oval flat top double bevel cabochons feature a pre-drilled hole, making them ready for use in pendants, rings, and other jewelry applications.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine black onyx (dyed black chalcedony)\u003c\/li\u003e\n\u003cli\u003eUniform opaque black color throughout\u003c\/li\u003e\n\u003cli\u003eFlat top with double bevel profile\u003c\/li\u003e\n\u003cli\u003ePre-drilled hole for versatile setting and mounting\u003c\/li\u003e\n\u003cli\u003eTreatment: Dyed\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\u003eTop Style\u003c\/th\u003e\n\u003ctd\u003eFlat 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\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\u003eSize\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e947-832\u003c\/td\u003e\n\u003ctd\u003e12x10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e947-833\u003c\/td\u003e\n\u003ctd\u003e14x12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"12x10mm","offer_id":47551857754326,"sku":"947-832","price":4.8,"currency_code":"USD","in_stock":true},{"title":"14x12mm","offer_id":47551857787094,"sku":"947-833","price":5.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/oval-flat-top-double-bevel-genuine-black-onyx-with-hole-otto-frei.jpg?v=1719954474","url":"https:\/\/www.ottofrei.com\/products\/oval-flat-top-double-bevel-black-onyx-cabochon-with-hole-12-14mm","provider":"Otto Frei","version":"1.0","type":"link"}