You are viewing a very fine quality 14K yellow gold signet style ring made in the 1980's. The ring measures 17 mm or just under 3/4" long up the finer by 22 mm or just over 3/4" across. The ribbed style gold surrounds a high polished Black Onyx cabochon stone in the center. The ring is marked: 14K and has a designer's logo. The ring is a size 8 1/4 and can be re-sized. The ring has a weight of 19.2 grams.