25.52 Ct rectangle boulder opal
A large rectangle boulder opal with very bright rainbow colours and a lovely straw pattern.
- 25.52 carats.
- 39.5 x 11.4 mm / 1.55 x 0.44".
- 5.5 mm / 0.21" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Gem grade.
- Opal ID 3067.