Centering an Old European cut diamond weighing app. 0.77ct. (G-H color, SI1 clarity), flanked by two Old European cut and two Old Mine cut diamonds, all weighing app. 1.68ctw. (0.65ct, 0.57ct., 0.25ct and 0.21ct.) in prong settings, fashioned in 18k gold. Circa 1900. Size 6.25.EGL US310176803D
