10.80 Ct top gem green-blue boulder opal

10.8 carats

Natural solid boulder opal

Yaraka mining region, Western Queensland, Australia

Length: 28.4 mm
Width: 6.9 mm
Depth: 4.8 mm

Opal ID 2805 is a Top gem Grade boulder opal.

Australian boulder opals of this grade are extremely rare. They score very high in most valuation factors, including, brilliance, colour, pattern and play-of-colour. They often also have a black or very dark body tone.