Onyx – Natural, Cabochon, Black
This 14k yellow gold Victorian mourning brooch features a 2" polished onyx oval and marcasites set in a silver floral crest. Photo courtesy of liveauctioneers.com and GWS Auctions Inc.
Article: Onyx Properties, Varieties, and Jewelry Information
Credit: GWS Auctions Inc
| Gemstone | Quartz, Chalcedony, Onyx | 
| Natural or man made | Natural | 
| Height | 50.8 | 
| Jewelry type | Brooch | 
| Gem State | Cabochon | 
| Color | Black | 
| Transparency | Opaque |