This magnificent antique platinum engagement ring features an ornate design of curling organic cutwork, intricate engraving and milgrain frosted filigree. Diamond frosted petals twirl around the rings shoulders and sides framing the central mounting. The square mounting is set with a .84 carat, F colored, Vs2 clarity round cut diamond. This stunning Edwardian ring measures 13.72 mm in width. Circa: 1910. Size 4 1/2. We can re-size slightly.