A stunning free-form shape boulder opal with a natural green-blue 'dip' and strong green-blues throughout.
- 6.56 carats.
- 19 x 10 mm / 0.74 x 0.39".
- 4 mm / 0.15" thick.
- Natural solid boulder opal.
- Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
- Commercial grade.
- Opal ID 156.
