You are viewing a fine quality 18K yellow gold Retro era ring. The ring measures 17mm or 3/4" long by 19mm. The ring domes up off the finger 12mm 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.