23.54 Ct large ocean tone boulder opal
Broken River Mining
A large free-form boulder opal with a very strong greens and blues on a semi-black background / body tone.
- 23.54 carats.
- 26.8 x 17.3 mm / 1.05 x 0.68".
- 5.4 mm / 0.21" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
- High commercial grade.
- Opal ID 2537.