7.23 Ct rectangle boulder opal

A narrow rectangle boulder opal with strong flashy colours.

• 7.23 carats.
• 28.9 x 6 mm / 1.13" x 0.23".
• 4.9 mm / 0.19" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.