I am interested in a Cartier pave band #40084937. Its a very wide pave band with stepped back edges for lack of a better description. Sorry I cant find a picture that is copy-able. It comes in 18k yellow and 18k white. I would prefer platinum. I am wondering what it would cost to do a custom similar version in platinum because 1)I know Cartier wont do it and 2)I am not sure I want to pay that premium anyway. Thoughts?