This unique necklace features a lovely triangle Ethiopian cabochon opal with a beautiful play of colour weighing approximately 4.25ct mounted in a three claw open back setting. This remarkable stone sits within a geometric triangular arrow designed mount, micro set with 54 fine quality round brilliant cut diamonds weighing a total approximate weight of 0.60ct. The pendant hangs from a fine 18ct white gold 16" spiga chain. Hallmarked, SB 750, England.