Thank you everyone for your input!! I'm feeling stressed out about the choice!! My local tiffany's only has one emerald ring, so they are bringing in 5 that I requested. Hopefully they will be in within a few weeks. Honestly I only tried on the 1 c emerald ring they had in stock, and I never even thought to try on a round. I didn't even consider the round until I was reading threads and saw so many beautiful Tiffany RB. I guess I'll have to try them both on and hopefully it will become obvious to me. I'm (we) are planning to upgrade in about 2 years, so with tiffany's upgrade policy I'm trying not to spend too much money for this ring.
carlinha: your ring is so gorgeous!!! You make me love the emerald!!! I'm not to sure about a band.