An antique diamond marquise cluster ringA beautiful Edwardian marquise cluster ring set with nine old brilliant cut white diamonds, each approximately 0. 05 carats, with a combined total weight just under 0. 50 carats. The diamonds are well matched, bright and lively, with an estimated colour HI and clarity SI. The stones are set in a finely detailed millegrain mount, with the ring testing as platinum to the head. The under setting and shank test as solid 18 carat yellow gold. No hallmark