Ladies Opal and diamond ring in 18ct yellow gold and platinum, featuring a rare black Opal from Lightning Ridge, with bright flashes of red, green, blue and yellow. Designed and handcrafted by Robert Pearce, fellow of the prestigious 'Gold & Silversmiths Guild of Australia'. — 1.70ct Lighting Ridge solid black Opal, round brilliant natural diamonds, 18ct/Platinum, Measurement: 12mm wide, Ring Size: N 1/2