I'm sorry but this is not sophisticated. It's a classy brand but sounds so trashy when used as a name. So many people naming their daughter this because it's classy? No. Your child is not a handbag. Not really unique. People can do better. I agree with the comment saying you should call your daughter Gabrielle if you love Coco Chanel so much. But people strangley enough want their child associated with an expensive brand. This doesn't give you immediate style and make you look classy on first impression when learning your name.
This name is trashy and ugly. It's one letter away from "channel". I don't get why people name their kids after brands they can't afford, like this one. Plus it means pipe, and it has inspired ghetto spellings such as Chanelle/Shanelle.