An early 20th century emerald and diamond ring Set with a cushion-shaped emerald, with a pear-shaped diamond to one side and an old brilliant and a single-cut diamond to the other, within an openwork surround of similarly-shaped, single and rose-cut diamonds, with knifewire and millegrain detail, to a scrollwork gallery, mounted in platinum and gold, pear-shaped and old brilliant-cut diamonds approx. 0.80ct total, ring size approx. H½ For further information on this lot please visit Bonhams.com