Australian Boulder Opal - 4.81 Ct small oval green-blue boulder opal - Broken River Mining

4.81 Ct small oval green-blue boulder opal

Broken River Mining

Regular price $185.00 AUD Sale

A strong oval green-blue boulder opal, which is a perfect ring size.

  • 4.81 carats.
  • 15.3 x 10.3 mm / 0.60 x 0.40".
  • 3.7 mm / 0.14" thick.
  • Natural solid boulder opal.
  • Mined by Sue at her Yaraka opal mine in Queensland, Australia.
  • Has a rounded back.
  • Commercial grade.