This exquisite sterling silver clip from the PANDORA collection shines with a simple yet striking motif of two interlinked hearts with contrasting finishes. The smooth silver heart and its cubic zirconia-studded ally express everlasting feelings of friendship and love. Style # 792150CZ. Due to the nature of Sterling Silver, it’s normal for an item to darken over time. Cleaning with a silver cleaning cloth will restore your charm or your local store is happy to help.