July 2, 2012 update: I'm lowering the rating from 3 stars to 2 stars, as one of the black eye crystals has fallen out.  This has been worn very rarely, perhaps only 4-5 times, and crystals should not be falling out.

Original review from February 21, 2012:

The pendant itself is very nice, no issues so far.  On the chain however, the nice lobster claw catch is attached with a tiny link that is not soldered closed.  After wearing for 2 days, this link opened slightly, not surprisingly, and the chain fell off.  This link should have been soldered closed, because, as they say, a chain is only as strong as it's weakest link.