A beautiful estate engagement ring from the 1950s with a knife edge design featuring a round diamond in the center that weighs approximately 0.50ct. Accentuating the center stone are 3 smaller single cut diamonds totaling ~0.62ct. The diamonds are all H-I color and SI clarity. The ring is crafted in solid platinum and weighs 2.4 grams. Size 4 1/4 that can be sized to fit.