Opal ID 3151
18.93 Ct top gem grade boulder opal
A free-form boulder opal with brilliant broad rolling flashes of greens, blues and orange-reds and a dark body tone.
Natural solid boulder opal
Yaraka mining region, Queensland, Australia
Opal ID 3151 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.