This Australian boulder opal Yowah nut cabochon is a stunning piece with multicolored opalescence effect. The gemstone has been cut and polished into a freeform shape, measuring 9mm x 11mm x 4mm thick, and has a total carat weight of 2.35 ct. It is 100% natural and has not been treated or enhanced. The opalescent gemstone is set to make a statement in any jewelry or gemstone collection. This item is a unit sold in a single piece and comes from Australia. Perfect for loose gemstones or loose diamonds & gemstones enthusiasts or collectors who appreciate natural, unaltered beauty.