Cocktail ring with trillion-cut Ouro Verde quartz. Photo courtesy of liveauctioneers.com and Dalshire International.
Brown Quartz Faceted Trillion Cut, Heat-Treated in Ring
Cocktail ring with trillion-cut Ouro Verde quartz. Photo courtesy of liveauctioneers.com and Dalshire International.
Article: Ouro Verde Quartz: History and Treatment
Credit: Dalshire International
| Gemstone | Quartz |
| Treatments | Heat Treatment, Irradiation |
| Natural or man made | Natural |
| Jewelry type | Ring |
| Gem State | Faceted |
| Color | Brown |
| Transparency | Transparent |