An extra small boulder opal with rainbow colours.

• 2.14 carats.
• 10.1 x 8.3 mm / 0.39 x 0.32".
• 3 mm / 0.11" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.
• Opal ID 2491.