4.15 Ct small boulder opal
A long slender rectangle boulder opal with some lovely rainbow colours.
- 4.15 carats.
- 26.9 x 1.8 mm / 1.05" x 0.31".
- 3 mm / 0.11" thick.
- Natural solid boulder opal.
- Mined by Sue at her Yaraka opal mine in Queensland, Australia.
- Commercial grade.
Vendor: Broken River Mining