Gina as a name I suppose, but if I saw it I'd think of the place and pronounce it more or less Yay-na. Jone-y. Jone-y again, as in Mitchell.
If I saw Joeie or Joei, I'd assume it was a kre8iv spelling of Joy, so I'd see it as female but for the wrong reason. And I'd certainly expect Joey to be male. It's another good reason for giving a child a full name (Josephine or Joanna?) and using the nn form as just that - a nickname.