Board Thread:General Discussion/@comment-3393430-20150712002727/@comment-26293010-20150721053626

I Think since Ruby and Sapphire are like the same gem (IRL) but just colored (not really but they may as well be) then I think it is very possible for them to have default gem placements like they do.

As for changing them, that seems to be a no. Cause when Amethyst shapeshifted into steven, pearl or rose she didnt change her gem placement. In Onion Friend I believe she just changed where her chest was. Like moving your gem down would work unless you moved lets say chest down to your stomache. She wasnt moving her placement to an arm, she was moving her chest to a different place.