Vintage Diamond Engagement Ring, Old Mine 1.51ct

Centering an Old Mine cut diamond weighing app. 1.51ct. (H-I color, VS2 clarity), in a square mount, framed and flanked by eighteen Single cut diamonds weighing app. 0.26ctw. in a geometric, east west design, fashioned in platinum. Adolph Rosenberg & Son.- Newark, NJ. Circa 1940. Size 7.5EGL US312775403D