A geometric boulder opal with pink, blue and green swirls.

• 19.12 carats.
• 25.8 x 16.5 mm / 1.01 x 0.64".
• 5.1 mm / 0.20" thick.
• Natural solid boulder opal.
• Mined by Sue at her Mt Margaret opal mine in Queensland, Australia.
• Commercial grade.