I have yellow gold in most of my jewelry also. I'd be more concerned about how platinum will look with your existing jewelry. I always buy yellow gold because it goes better with my other jewelry.
I also wouldn't worry about not looking "in style" now. What is in style now will be out of style in a few years anyway. Unless you replace your bands every 7 or 8 years they are bound to look dated.
Last edited by cashs_mom; 07-22-2017 at 10:42 PM.