You are viewing a fancy 14K yellow gold man's signet ring from the late 1950's.The ring measures 13mm or just over 1/2" long by 22mm. It has a granulated design on all four sides of the gallery. It is set with a flat cabochon of Black Onyx. The ring is marked: 14K. It is a size 9 1/2 and can be re-sized. The ring weighs 9.3 grams.