This is a vintage vermeil heart shaped locket. It is marked 1/20 10K on sterling silver. The heart has a chased design on the edge with a tiny genuine diamond inside a heart frame in the very center. There is a heart shaped bale for addition to a chain (not included). It closes with a nice snap and stays closed with a slight opening. There is patina on the inside and minor scratches on the reverse but no initials or dents. Size is 3/4 inch in width by 1 1/4 inches in length including the bale.