Talk:The Great Diamond Authority/@comment-26507420-20160115202130/@comment-856627-20160122012235

There's nothing supporting this theory, especially since Peridot wasn't said Steven's gem type, she guessed it. Why would she guess it wrong when she's such a "diamond nerd"?

Also, YD and BD's gems have roughly the same cut, and WD's gem has also been shown to be diamond-shaped in the murals. Why would PD's gem be completely different?