A triangle boulder opal with lovely greens and blues.

• 5.04 carats.
• 17.3 x 10.3 mm / 0.68 x 0.40".
• 3.5 mm / 0.13" thick.
• Has a curvy (concave) face.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.