Talk:Steven Universe: Art & Origins/@comment-26618197-20170711215216/@comment-28635336-20170717195510

it wasn't even concept art. just like with the fake Gems (eg Concrete) the gem tech was part of a creative excersize where one member of the crew would draw something, and another would take the image and write a description based around it. so yeah, there's a corrupted Gem collar, and a Gem incinerator, but they're pretty much as far removed from canon as possible.