Opal doublet, photo by Opalcutters23. Licensed under CC By-SA 3.0.
Assembled Opaque Blue Play-of-Color Opal Stone Cabochon
Opal doublet, photo by Opalcutters23. Licensed under CC By-SA 3.0.
Article: Gemstone Doublets, Triplets, and Other Assembled Stones
Credit: Opalcutters23
| Gemstone | Opal Stone |
| Natural or man made | Assembled |
| Gem State | Cabochon |
| Color | Blue |
| Transparency | Opaque |
| Photo phenomena | Play of Color |