An exquisite 18ct gold ring bezel set with a 10 mm x 8 mm solid black opal, totaling an estimated 3 carats. This stunning Lightning Ridge opal has broad pattern colour display with predominantly blue and green tones. With tapered shoulders and a plain shank.
Measurements: UK size K 1/2 or USA size 5 3/8
Weight: 2.5 g
Hallmarks: marked 18ct for 18ct gold