Centering an Old European cut diamond weighing app. 1.31ct. (H-I color, VS2 clarity) in a square mount, flanked by four Baguette cut and six round diamonds (five Round Brilliant cut, one Single cut) weighing app. 0.22ctw., in an asymmetric design with swirl detail, fashioned in platinum. Unidentified maker's mark. Circa 1940. EGL US310488501D. Size 6.