“Opal Necklace” by James Petts. Licensed under CC By-SA 2.0.
Assembled Opaque Blue Opal Stone Cabochon in Necklace
"Opal Necklace" by James Petts. Licensed under CC By-SA 2.0.
Article: What is my Birthstone?
| Gemstone | Opal Stone |
| Natural or man made | Assembled |
| Jewelry type | necklace |
| Gem State | Cabochon |
| Color | Blue |
| Transparency | Opaque |