A small triangle boulder opal with that is a mini-picture stone and also the perfect size for a ring or pendant. 

• 7.11 carats.
• 16.7 x 15.3 mm / 0.65" x 0.60".
• 3.6 mm / 0.14" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Commercial grade.