I agree about leaving the solitaire. Halo settings are big right now, puzzle-type rings that fit together were popular about 10-12 years ago, wide gold bands were big about two decades ago, colored side stones before that, etc. My point is that there will always be trends in jewelry, but a solitaire - especially with a gorgeous, simple, emerald cut - will ALWAYS be fashionable. Jazz it up with a different wedding band if you feel like it, but I'm a big fan of the solitaire setting for the main stone.