Aquamarine and diamond ring mounted in palladium, the step cut aquamarine weighing an estimated 16.75 carats and measuring 18 by 13.65 by 9.5 mm, each shoulder set with a single pear shape diamond and three brilliant cut diamonds, American, circa 1940, the two pear shape diamonds with an estimated weight of 0.90 carat, the six brilliant cut diamonds totalling an estimated 0.18 carat.