She will most likely perform full set of songs, so Diamonds will be on the list, I think.
That should be the case hopefully they followthrough....and im not here for her sittin on her ass and not promoting this album effectively. I understood it during the TTT era because she was on the LOUD tour but there's no excuses this time and she needs to start now by releasing a press release about the album and giving us a lot more info. As it stands now, we don't know a thing about the album we're just playing the guessing game
Not on the same level of love as for We Found Love or anything, but still 
Tomorrow!