Jewellery, Watches and Objects of Vertu

A black opal and diamond cluster ring, the oval cabochon black opal claw set within a surround of brilliant-cut diamonds, mounted in white precious metal, shank stamped ‘18ct’, accompanied by an I.G.N. gemmological report, ring size R. £2600-3000

The Istituto Gemmologicao Nazionale report number 25643, dated 11th April 2018 confirms the natural Australian black opal weighs approximately 12.50 carats, and the diamonds have a total weight of 1.8 carats, with an average clarity of VVS-VS and an average colour of H-I.