A small free-form boulder opal with broad flash greens and blues.

• 4.09 carats.
• 19.3 x 6.9 mm / 0.75 x 0.27".
• 3.8 mm / 0.14" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.