You are viewing a fine quality 18K yellow gold ring made in the 1960's.. The ring measures 17 mm or just under 3/4" long up the finger by 19 mm or 3/4" across. The ring domes up off the finger 12 mm or 1/2". It is set with a natural 6 mm Black Pearl. The ring is marked: 18K. The ring is a size 7 with a thick shank and could be re-sized. The ring weighs 10.6 grams.