That's really cool idea to name your daughter a G name!
Gloria is beautiful!
Gabriella is pretty but fairly popular right now.
Grania is actually my favorite of these three! I love it and it's a form of
Grace so that makes is extra special.
I also love your name!
Gretchen is such a cute sweet name!
I also like your mom's name
Gwyn, have you thought of using that or something like
Guinevere,
Gwendolyn or
Gwyneth?
I think you're on a roll! :)

Bunny,
Gigi,
Chloris,
Wilma,
Darleen,
Eartha "Any name is beautiful when it's given in love" -Me