5.00 Ct small rainbow triangle boulder opal

A small triangle boulder opal with lovely strong rainbow colours on a dark, lilac-hued background / body tone. 

• 5.00 carats.
• 17.4 x 10.7 mm / 0.68 x 0.42".
• 3.9 mm / 0.15" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.