A matrix triangle boulder opal with green and blues running through its center.

• 17.26 carats.
• 29.9 x 15.8 mm / 0.72 x 0.71".
• 5.5 mm / 0.18" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.