4.87 Ct curvy free-form boulder opal
A curvy, free-form boulder opal with strong, green and blue colours. This opal has a flat back, but it has a curvy face (see photos below).
- 4.87 carats.
- 15.6 x 11.9 mm / 0.61" x 0.46".
- 3.4 mm / 0.13" thick.
- Natural solid boulder opal.
- Mined by Sue at her Russells opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining