This mesmerising investment gem is a rare solid Black Opal from Lightning Ridge, with vibrant rolling red, blue, green and yellow colour pattern through the deepest black. Set in an 18ct and platinum claw set diamond frame. Designed and handcrafted by Robert Pearce, fellow of the prestigious 'Gold & Silversmiths Guild of Australia'. — Black Opal weighing 4.65ct, 23 = 1.20ct brilliant F/G VS natural diamonds, Measuring 16mm x 18mm + Bail, Inc. 18ct YG Trace Chain, Photo colour match in natural daylight.