AN AMETHYST AND DIAMOND BROOCH

Set with an oval-cut amethyst at the centre, within an openwork foliate frame set with old brilliant-cut diamonds, suspending three pear-shaped amethyst drops, millegrain detailing, diamonds approx. 0.35 carat total, length 4.5cm, width 3.8cm, accompanied by a box W.D Cooper, 235 Brompton road, SW