The ZALE'S Heart Locket Necklace is a stunning piece made from sterling silver with a beautiful pendant shaped like a heart. It features a single clear diamond and a spring ring closure, perfect for a graduation occasion. The necklace has a total carat weight of 0.24 and under, with a traditional style and prong setting. The gemstone clarity grade is very slightly included, and it is certified with acid tests 925. With its double hearts design and intricate details, this necklace by Zales is a timeless and elegant piece of fine jewelry.