An early 20th century sapphire ring. Photo Christie's Image Ltd 2012

The cushion shaped sapphire to a pierced millegrain-set diamond gallery with curling motifs and chased detailing, to similarly-set shoulders and reeded tapering hoop, circa 1915, one small diamond deficient. Price Realized £51,650

Christie's. Important Jewels. 12 December 2012. London, King Street.