This is an amazing diamond 18k yellow and white gold ring from the 1960's. This vintage bombe cocktail ring is set with a sparkling round cut diamonds that weigh approximately 3.55ct. The color of the diamonds is F-G with VS1 clarity. The ring weighs 16 grams. The ring is size 5 but it can be resized. It measures a tapering width from 4mm to 20mm. The top of the ring measures 20mm by 22mm by 12mm.