Lady's vintage platinum diamond engagement ring measures 7.7mm wide at the top of the square crown and tapers to 1.9mm wide at the bottom. The Center transitional round brilliant cut diamond measures 6.63-6.75mm in diameter by 4.48 deep and weighs and 1.22 carats. It has 66.9% depth, 49.3% table, an extremely Thin to Thin, froster girdle, a small cutlet, very good polish and fair symmetry, H Color, SI1 Clarity. Bead set in the center of the crown is one (1) transitional brilliant cut diamond. Bezel set along each shoulder is one(1) triangle step cut diamond bordered on each side by one(1) single cut diamonds. Six (6) supporting diamonds are G/H Color, VS2-SI1 Clarity and have a total weight of .22 carat combined. Total weight 1.44 carats, is stamped PLATINUM and weighs 4.3 grams. Circa 1930s.