Only the prettiest Opal from Coober Pedy is selected for this exclusive collection of necklaces, appearing as water in a decanter. Designed and handcrafted by Robert Pearce, fellow of the prestigious 'Gold & Silversmiths Guild of Australia'. — 1.40ct Coober Pedy solid Opal, 0.05ct E VS round brilliant natural diamond, 18ct white gold, Measurement: 20mm across.