canonically, all gems take on female pronouns when they emerge, but obvs they're just space rocks and they don't have peepees or anythin. amethyst has played around with having male forms (eg purple puma, who is referred to as "he"), but as far as we know, she's the only gem to have done this. in short, every gem is she/her because that's just how gems call each other. there are no 'male' or 'female' gems because they don't have loveual dimorphism. topaz is just butch.
not that it forgetin matters lmao