18.86 Ct free-form ocean swirl boulder opal
A free-form boulder opal with swirls of strong ocean greens and blues along with picturesque ironstone inclusions.
- 18.86 carats.
- 19.3 x 15 mm / 0.75 x 0.59".
- 6.1 mm / 0.24" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining