I would suggest trying them BOTH on if you can & make a decision from there.
Everything looks similar online & it's almost impossible to predict how the band will look in reality next to your E-ring.
I'm looking for a new wedding band myself & considered several of Tiffany's, but I went in person to try them on......that's the only way. I finally selected the Tiffany Novo "half circle"
My diamond is slightly larger than yours and is set in a solitaire setting, so I prefer a wedding band that's about the same width (2mm) or slightly narrow 1.8, as too wide and the BAND becomes the focus....not the E-ring, kwim??