This is the shocking thing about it. Mine are almost brand new, bought only a few months ago. And I've only worn them a few times, never subjected them to water.
So sorry you lost the diamond on the LE Onyx earrings. I wore mine last night and when I put the right one on I noticed it seemed loose. When you shake the right earring you can hear it is loose.
I am going to send it in for repair. I hope VCA takes care of you and replaces this diamond. Do you live near a VCA? I will have to send mine to NYC.