31.32 Ct geometric boulder opal
An extra large geometric boulder opal with bright rainbow colours.
- 31.32 carats.
- 54.6 x 14 mm / 2.14 x 0.55".
- 5.7 mm / 0.22" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
- Opal ID 2992.