Large predominantly green Australian boulder opal from our mine in western Queensland. It has a 3mm hole drilled through sideways and placed on a solid 1.5mm thick x 50cm long sterling silver omega. Comes with a free silver polishing cloth.
Stone size: 48.3mm long x 23.7mm wide x 11.7mm thick and weighs 20g
We have taken photos in different lighting from sunlight to filtered light.