An unusual Art nouveau gold, ruby and diamond ring, circa 1900, centring on a cushion-shaped ruby

£1,500 - £2,000 £2,016

An unusual Art nouveau gold, ruby and diamond ring, circa 1900, centring on a cushion-shaped ruby between two marquise-shaped diamonds of yellow tint, to a gold band modelled as a pair of caryatids, accented with rose-cut diamonds and circular-cut rubies, size N, partial French assay mark for 18ct gold, indistinct French maker's mark