Centering a prong set, Old Mine cut diamond weighing approx. 0.74ct. (IJ color, SI2 clarity), flanked by two 5.9mm, round cultured pearls & four, bead set, Old European and Single cut diamonds; with a combined approx. weight of 0.07ctw. Filigree frame & gallery and open tapering shoulders with millegrain detailing. Fashioned in platinum. Circa 1920. Size 7.