Opal Stone
Platinum ring with diamonds and a sugar-treated opal. Photo courtesy of liveauctioneers.com and Clars Auction Gallery.
Article: Appraising Opals
Credit: Clars Auction Gallery
Gemstone | Opal Stone |
Treatments | Dyeing, Heat Treatment |
Natural or man made | Natural |
Jewelry type | Ring |
Gem State | Cabochon |
Color | Black |
Transparency | Opaque |
Photo phenomena | Play of Color |