Centering an Asscher cut diamond (Square Cut Emerald) weighing app. 1.03ct. (F color, VS2 clarity), in a four prong mount, flanked by four Single cut diamonds weighing app. 0.07ctw. in millegrained, diamond-like settings, fashioned in platinum. Unidentified maker's mark. Circa 1945. Size 6.25GIA 1152381435