49.66 Ct green-blue boulder opal

A large free-form boulder opal with green-blue colours on a black body tone / background.

• 49.66 carats.
• 32.2 x 23.5 mm / 1.26 x 0.92".
• 8.5 mm / 0.33" thick.
• Natural solid boulder opal.
• Mined by Sue at her Yaraka opal mine in Queensland, Australia.
• Gem grade.
• Opal ID 28.
• Sister stone to Opal ID 1719.