The Boulder Opal Rock is a unique gemstone sourced from Australia, known for its bi-colour/multicolour appearance and opaque transparency. This natural gemstone creates an opalescence effect, adding a mesmerising touch to any jewellery piece. With excellent cut grade and eye clean clarity, this boulder opal is a perfect addition for those who appreciate natural beauty - nice to collect or cut pendants out of or for backing material for opal
eBay