13.52 Ct green circle boulder opal
A round green-blue boulder opal, which is a perfect ring size.
- 13.52 carats.
- ~17.5 x 17.5 mm / 0.68 x 0.68".
- 5.6 mm / 0.22" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Has a rounded back.
- Commercial grade.
Vendor: Broken River Mining