Natural Extra Fine Black Onyx - Oval Cabochon - AAA+ Grade

Natural Gems Only: 100% Earth Mined No Synthetics, No Simulants Full Disclosure of Any Treatments MM size is the best measurement to select the right gemstone size. All gem carat weights are approximate. 100% Satisfaction Guarantee - Superior Quality - Free Matching Service Gemstone Report Natural Onyx Species: Chalcedony Shape/Cut: Oval Cabochon Clarity: Clean + Color: Extra Fine Black Polish: Excellent RI: 1.535-1.539 Specific Gravity: 2.6 Hardness (Mohs): 6.5-7 Treatment: Dyed (Standard) Guarantee   100% satisfaction guaranteed. We back this gemstone with a no questions asked 30 day return policy. // '); }; var _ebayItemID = 0; if (typeof ebayItemID != 'undefined') { _ebayItemID = ebayItemID }; include_showcase('//open.inkfrog.com/services/showcase/?sid=25972&uid=1896&ebayItemID=' + _ebayItemID); // ]]>