Natural Extra Fine Black Onyx - Oval Buff Top Cabochon - AAA+ Grade
NW Gems & Diamonds![Natural Fine Black Onyx - Oval Buff Top Cabochon - Brazil - Top Grade - NW Gems & Diamonds](http://www.nwgems.com/cdn/shop/products/Onyx_Oval_Bluff_Top_5d6af3f5-ca39-44d1-8eed-fc07a5baa641_1024x1024.png?v=1505081712)
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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. |
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Natural Onyx Species: Chalcedony Shape/Cut: Oval Buff Top Cabochon - Single Bevel - SBBT Quality: AAA+ 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) |
 100% satisfaction guaranteed. We back this gemstone with a no questions asked 30 day return policy. |