I need advice on upgrading the center stone in my 3 stone e-ring (2.5 tcw). My mother-in-law chose the center stone. It's 1.25 ct, D color, good cut/polish/symmetry. The 2 side stones are each 63 points, D color, excellent cut/polish/symmetry. My wedding band is eternity 3.2 tcw (16 diamonds each 20 points) D color, ideal cut and is really beautiful. Even though we've only been married less than 6 months, my DH says I can upgrade my center stone if I wanted. I really dislike the strong fluorescence of it and feel that it diminishes the beauty of my set when it should be the focal point. I receive a lot of compliments on my rings and I don't wish to sound spoiled (I'm not. His mother did feel that she was getting me a really wonderful diamond but I make considerably more money than my husband). First: is it too soon to upgrade and will this hurt my new relationship with my mother-in-law: Second: if not, where to start shopping? Third: is it better to "trade in" the center stone for a different one or should I sell it on my own? Any comments are really appreciated! TIA!!