Board Thread:General Discussion/@comment-26211644-20150316033910/@comment-26202330-20150401164158

The simplest way to explain it is like how the Wiki page describes it:

Amethyst is the dominant personality in Sugilite, greatly enhanced by the determination of Garnet(i.e Ruby).

It is as if they injected Amethyst's "I do what I want" personality with bull shark hormones.

Whereas Amethyst will get annoyed if you tell her what to do; Sugilite would punch your lights out!