Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

Two ruby and diamond set rings, the first with central collet set ruby within flowerhead frilled border edged with single-cut diamonds, to diamond and white stone set shoulders (one stone replaced) to 18ct gold shank, the second, a ruby and diamond half eternity ring, the stones alternately set, (rubies untested for natural versus synthetic origin), to 18ct gold shank, (both rings enlarged), ring sizes T and U respectively. £300-400