Charming Edwardian 18-carat gold emerald and old brilliant diamond cluster

Dainty 18-carat white gold sapphire and diamond cluster

Unusual 1930s 18-carat gold diamond-shaped ruby and old brilliant cut diamond cluster ring

Pretty Edwardian 18-carat gold old brilliant cut diamond cluster ring.

Victorian 18-carat gold five-stone sapphire and diamond carved half-hoop

Beautiful antique cushion-cut diamond, 1.62cts.