The only problem I saw in "Diamonds" was that in the 4 girls "folksy section" one of the girls kept getting off.
I totally agree with all your comments... Diamonds is always so special!!!
I do feel that Lowery seemed to appear more relaxed in the role as the ballet progressed and had more fun with it. I happen to really like her because she is such a powerful dancer. She just needs to show us a bit more passion. As far as Fairchild, I think that both her and De Luz were miscast. Though I usually love them, their limbs just didn't seem long enough to show some of the lines in the choreography.
And Emeralds was my favorite section last night! Again I love her but I also wouldn't have thought of Bouder cast in it but I guess it just shows us how multifaceted she is and how much more we have to look forward to from her.