This stunning black opal rough is a natural, 100% certified gemstone from Ethiopia. With a weight of 8.10 carats and dimensions of 17x17 mm, it is perfect for use in jewelry or as a loose gemstone. The opaque gemstone has an excellent cut grade and features opalescence for a truly unique effect. This vintage piece has not been treated and comes in its raw form, with a rough texture and eye-clean clarity grade. The gemstone shape is raw, adding to its natural beauty, and it is accompanied by a certification of authenticity. Whether you're a collector or a jewelry maker, this rough black opal is a must-have addition.