My husband is planning on purchasing a 3-carat full eternity band for me and we''re trying to learn more about them. Locally the largest I am finding is 2-carat. I plan to wear this alone on my right hand so we were thinking a little more substantial. If you own one, is it comfortable and what size is yours? Are you glad you went with full instead of 3/4 or half and where did you purchase it? Any help would be appreciated.