Steven Universe Fanon Wikia
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"Don't worry bro, none of this is canon. But this is!"
This article contains information that is considered canon in the "Steven Universe" universe.

Are you joking me?! The Diamonds are the Gem matriarchs! Together they make up the Great Diamond Authority that governs Homeworld and all the outlying colonies! We live to serve them.

Peridot, "It Could've Been Great"

The Great Diamond Authority is the matriarchal body of Gem leaders who rule in absolute power over Homeworld and the existing Gem colonies.



Sigil[]

The symbol of the Great Diamond Authority appears on many Gem structures, but has changed over time. On structures built prior to the Rebellion, the symbol consists of four diamond shapes: white (top), yellow (right), blue (left), and pink (bottom). On modern structures, the pink symbol has been removed, leaving only the yellow, blue and white shapes (now in the form of overlapping triangles), suggesting that the Authority has been reduced in membership from four to three during that time.

Members[]

Yellow Diamond[]

One of the Diamond leaders. She is the superior of Jasper, and many other Gems "made" for her. She is the former superior of Peridot, a Crystal Gem. She commenced the Cluster project when Earth was deemed unfit for a colony, due to the Rebellion.

Blue Diamond[]

One of the Diamond leaders. She was the superior of Ruby and Sapphire, and many other Gems "made" for her. She was once the supervisor of the colonization of Earth

White Diamond []

One of the Diamond Leaders is the supreme leader and most perfect Diamond until Change Your Mind. She has the power to control gems like Pink Pearl she needs to every gem be perfect like her.

Former Members[]

Pink Diamond[]

Pearl Uniform

Pearl in her space suit.

A former Diamond leader. Details about her are unknown other than the fact that her pink symbol that is present on ancient Gem structures, but absent on structures dating as early as the Pyramid Temple. She also has a mural in the moon base, but only her legs are present in the shot.

Pearl's space suit, as seen in "Space Race" and "Back to the Barn", has a pink diamond symbol on its chest. This suggests that Pearl was previously involved with this Diamond prior to her "removal" from the Authority. Sardonyx also sports pink diamond symbols on her feet, this most likely comes from Pearl.

Subordinates[]

Influence[]

The Great Diamond Authority has a great influence on Gems of lower caste and members of their courts. Each member of a Diamond's court wears a diamond emblem on their outfit; the colour of the diamond emblem worn by followers depend on the Diamond. Members of a Diamond's court are known to show respect, such as Sapphire calling Blue Diamond "my Diamond". Some members are passionate and enthusiastic about working for a Diamond. For example, Peridot exclaims "I was made for Yellow Diamond!".

Trivia[]

  • The current symbol might be a reference to The Triforce from The Legend of Zelda, as they both are three triangles that form a symbol.
    • The former symbol resembles the NFPA diamond, with slightly different colors (one of the diamonds is red instead of pink) and with the colors' positions switched.
  • The Great Diamond Authority was yet another theory created by Ronaldo Fryman that was proven true.
    • He claimed his theory in the first season episode "Keep Beach City Weird", and Peridot confirmed the matriarchs' collective name in the episode "It Could've Been Great".
  • So far, it remains unknown the reason why the Diamond Authority was reduced to three members.

Gallery[]

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