A sapphire and diamond plaque ring

A sapphire and diamond plaque ring

Of oval shape and pierced design, centrally collet-set with a cushion-shaped diamond, shouldered by four similarly-cut diamonds, interspersed with triangular-cut sapphires, to millegrain detailing, main diamond approx. 0.96 carat, remaining diamonds approx. 3.0 carats total, stamped 18ct, ring size J, weight 7.6grs