Board Thread:Ask the Staff/@comment-24747384-20160806192238/@comment-27003040-20160811095144

It would be weird if Rose were from Earth imo. Because we get hints from Pearl, Amethyst, Greg, and Rose herself that she's from Homeworld.

And then Bismuth comes out of nowhere and implies she's from Earth and the whole plot feels retconned.

But I mean, it's ambiguous and it can go either way I think.