Based on our own experience, these earring locking diamond replacements were a huge letdown... We purchased them for our arts and crafts projects, hoping for an affordable and secure solution. Unfortunately, the quality of these replacement locks is subpar. The diamonds are dull and lackluster, taking away from the overall appeal of our jewelry creations. On the bright side, the locks are easy to use and secure the earrings well. however, the lack of sparkle and quality is a significant drawbackSee full review