A solid black opal and diamond cluster ring, 18ct yellow and white gold, handcrafted as a vintage cluster, centrally set with a solid semi-black opal of Lightening Ridge origin, weighing approximately 2.65ct, the oval cabochon stone displaying strong varied colours of yellow, blue, lime green and violet, claw set in an open backed mount, framed by ten brilliant cut diamonds claw set, totalling approximately 0.85ct, set to a smooth band