Star sapphire. Photo © Joel E. Arem, PhD, FGA. Used with permission.
Opaque Blue Star Sapphire Cabochon
Star sapphire. Photo © Joel E. Arem, PhD, FGA. Used with permission.
Article: How to Orient Sapphires with Silk Inclusions
Credit: Joel E. Arem, PhD, FGA
| Gemstone | Sapphire, Star Sapphire, Corundum |
| Natural or man made | Natural |
| Gem State | Cabochon |
| Color | Blue |
| Transparency | Opaque |
| Photo phenomena | Asterism |