A stunning boulder opal with brilliant rainbow colours and wonderful movement.

• 11.76 carats.
• 21.3 x 13.8 mm / 0.83 x 0.54".
• 4.4 mm / 0.17" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.
  
• Opal ID 2317.