Centering an Emerald cut diamond weighing app. 1.02ct. (G color, SI1 clarity), flanked and framed by two Transitional Round Brilliant cut diamonds and six Single cut diamonds, all weighing app. 0.18ctw., fashioned in platinum. Unidentified maker's mark - stamped U.S.A. Circa 1940. Size 6.75GIA 6147943289