4.48 Ct small curvy boulder opal

A small, curvy free-form boulder opal with some fun rainbow colours.

• 4.48 carats.
• 17.4 x 9.7 mm / 0.68" x 0.38".
• 3.2 mm / 0.12" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.