Not only is it relatively heavy, it's also relatively bendable. I wore mine during an evening out, and put it in my purse as it was too heavy on my ear. Of course, a purse doesn't stay perfectly still, so when I came home, I found a mangled piece of metal in my purse instead.
It bends back to pretty much the original shape, but there's probably only so much this earring can take before falling apart.
So: it's beautiful. Just watch when and where you wear/take it.