Board Thread:General Discussion/@comment-4224349-20150713205628/@comment-26557411-20150714033941

Tesla Effect wrote:

I have a strange feeling that the Diamonds are the oldest of the Gem Species, so it would make sense that they would have regenerated from time to time to keep up with the times. As far as those pictures of the Sky arena go, those statues could very well just be of ancient Gems. I still believe the Murals to be what the Diamonds look or looked like. You never know, during the war Yellow Diamond may have been damaged enough to regenerate. I dont agree with that, given the obvious gem reveal to be Yellow Diamond (you kno, the only gem to have been mentioned but not shown and integral for finishing the stranded on earth plot with Jasper and Peridot). Peridots Cry For Help was directed specifically to Yellow Diamond.

Also there's a theory that the Diamonds command different regimants of Gems  Steven theory theory, the Gem Empire (SPOILERS!)  . Basically, Gems that follow Yellow Diamond have a YD insignia on their outfit whilst Gems that follow the other Diamonds have Pink/Blue/White diamonds insignias on their outfits.