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

An aquamarine pendant and blue stone earrings, the pendant set with an oval mixed-cut aquamarine to plain suspensory loop, the earrings set with rectangular step-cut blue stones, claw set above polished yellow precious metal surrounds, with clip and post fittings, stamped ‘18k’. £300-500