White Diamond

White Diamond is the true main antagonist of the Cartoon Network TV series Steven Universe.

She is the leader of Great Diamond Authority, the ruling body of Gem race. Her symbol is the top on the logo, implying that she is the ruler of the entire Gem race.

Physical Appearance
Not much can be depicted about White Diamond, but she is the leader of the Great Diamond Authority, so she would be of a massive size, also White Diamond has her gem located on her forehead, she also can be seen holding an orb in her hands, she also has spiked/jagged hair.

Appearances in the Show
It Could Have Been Great: White Diamonds Mural is depicted in the background and the Crystal Gems pass by it.

Back To The Moon: White Diamond's mural pictured again in this episode.

Future
There is not enough evidence and proof about White Diamond, her physical appearance and depiction is yet to come.