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

A pair of sapphire and diamond earrings, the square cluster of four scissor-cut sapphires in square polished surround with lines of small brilliant-cut diamonds to either side, above a tapering polished tail centred with a line of brilliant-cut diamonds, mounted in white precious metal, stamped ‘18k’, to hinged back clip and post fittings, length 17mm. £260-300