Ever since I saw a girl
Christian on
America's Next Top Model, I've liked the name as a gp. I like a lot of "
Chris-" names anyway, and
Christian has such a soft sound to it that it seems as though it would be appropriate for a girl.
I wouldn't worry about nn's. If she wants to be called
Chris,
Christi, etc., she'll tell people to call her that. If she wants to go by her full name, she'll let them know that, too.