The product is a 4.8 CT natural Australia Koroit Boulder Opal stone, measuring 14mm x 9mm. It features an opaque transparency, bi-color/multicolor gemstone color, and opalescence gemstone effect. This unique piece is polished and crafted in a freeform shape, reflecting the natural beauty of the gemstone. Originating from Australia, this boulder opal is wholesale and not enhanced, making it a rare and valuable addition to any jewelry collection.