Opal Stone
This polished 19.25-ct Australian black opal shows the cracks known as "crazing." © Opal Auctions. Used with permission.
Article: An Incredible Union of Colors: Choosing Opal Engagement Ring Stones
Credit: Opal Auctions
Gemstone | Opal Stone |
Natural or man made | Natural |
Origin | Australia |
Carat Weight | 19.25 |
Gem State | Tumbled |
Color | Gray |
Transparency | Translucent |
Photo phenomena | Play of Color |