A large oval boulder opal with bright rainbow colours on a lilac-hued, semi-dark background / body tone.

• 27.43 carats.
• 30 x 17.1 mm / 1.18 x 0.67".
• 4.8 mm / 0.18" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.
  
• Opal ID 2305.