I'm shocked I'm going to say this being a die-hard Cartier girl, but I have never been a big fan of this necklace. I have seen the design replicated so often that it has sort of ruined it for me.
It is cute, but its very dainty. If that is the look you're going for, then it's a great choice. But if you're looking for something to stand out a bit more and more of a statement piece, I think the Bvlgari is gorgeous and very unique!!