6.15 Ct rectangle boulder opal
A rectangle picture stone boulder opal with blues and a caramel swirl.
- 6.15 carats.
- 14.3 x 11.1 mm / 0.56 x 0.43".
- 3.6 mm / 0.14" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt. Margaret opal mine in Queensland, Australia.
- Lower commercial grade.
Vendor: Broken River Mining
