I think the mm depends on how wide (or narrow) your ERing is, and how long your fingers are. My mom always wore a very narrow ERing with a wide band, but a few years ago, she had a diamond set on her band, so now it's a solitaire on a wide band. My ERing is 3mm, and I think I'm going to start with a 3mm eternity band - the emerald and diamond one I have posted before.
And then I had a great brainstorm... Tiffany's Celebration Rings come in blue sapphire and pink sapphire with alternating diamonds. I'm thinking when I become a mommy, I'd like to put the blue and/or the pink with my ER. Will just have to convince FH that being pregnant deserves several thousand dollars in jewelry!
Edited by SoonToBeMrs (11/08/07 11:30 AM)