A colour-change sapphire and diamond cluster ring

£4,000 - £6,000 £7,000

A colour-change sapphire and diamond cluster ring, the cushion-shaped sapphire weighing 10.90cts, claw-set within a surround of old circular-cut diamonds in platinum, size N1/2, case

Accompanied by the The Gem & Pearl Laboratory report no. 22451 dated 29th November 2022 stating the natural colour change sapphire weighs 10.90cts, has no evidence of heat treatment, origin: Sri Lanka