A true gem!! Edwardian natural sapphire and diamond cluster engagement ring. 9.4mm x 7.4mm rectangular cushion natural unheated sapphire surrounded by old cut diamonds with rose cut diamond shoulders 0.50cts. All milgrain set in platinum. Notice floral design to gallery. Head size 12mm x 10.5mm. Circa 1900. Currently finger size O 1/2 (U.S 7.5)