This truly mesmerising fine investment gem is an incredibly rare solid Black Harlequin Opal with red, blue, green and yellow rolling vibrant colour in each window within the gem, which does not stop performing in any light. Designed and handcrafted in 18ct two-tone gold by Robert Pearce, fellow of the prestigious 'Gold & Silversmiths Guild of Australia'. — Harlequin Opal from Lightning Ridge weighing 8.80ct, 0.40ct brilliant F VS natural diamond, Including 18ct YG Trace Chain, Measuring 19mm x 22mm + Bail, Photo colour match in natural daylight.