You are viewing a nice quality 10K yellow gold fashion ring from the 1980's. The ring measures 18 mm or just under 3/4" long up the finger by 17.5 mm across. Set on top in the center is a marquise cut Diamond weighing around 1/4 carat. The total Diamond weight is 1 carat. The ring is marked: 10K. It is a size 6 and can be re-sized. The ring weighs 3.4 grams.