Yellow Diamond

In Steven Universe, the Gems are a race of synthetic humanoid alien beings composed of light controlled by a physical gem that acts as the core and source of their existence. Their bodily form is a solid holographic projection, meaning that while they may appear organic, they have no organs and do not age.

❖ Nature and structure:

Physical Gem: A crystalline object embedded in some part of your body (hand, torso, forehead, etc.). It is your true form. If damaged, the projection vanishes and the gem regenerates.

Body Projection: Solid hologram composed of hard light. Can be reformed at will after regeneration.

They have no biological needs: They do not need to eat, sleep or breathe, although they may do so out of habit or pleasure.

❖ Origin:

The Gems are artificially created by a civilization led by the Diamonds, who rule through a strict and authoritarian hierarchy.

They are born from the soil of colonized planets by a machine called an injector, which consumes the planet's resources to form a gem and its programming.

❖ Hierarchy (from highest to lowest rank):

1. Diamonds

The absolute leaders of the Gem Empire: Yellow Diamond, Blue Diamond, White Diamond and Pink Diamond (later Rose Quartz).

They control entire sectors of space and rule with total authority.

They are massive in size, powerful and worshipped almost as deities.

2. Personal pearls

Raised as high-status servants for Diamonds or important figures.

They have no free will by original design, and their value depends on whom they serve.

3. Quartz (soldiers)

Warrior gems made for battle. E.g., Jasper, Amethyst.

They perform military and protection functions.

4. Specialized gems:

Rubies (elite guards)

Sapphires (strategists with clairvoyance powers)

Bismuths (engineers)

Lápizlazuli (messengers and terraformers)

Aquamarines (diplomatic)

Peridots.

Ideology:

He upholds a doctrine called "Evolutionary Order," based on the purging of everything inefficient, weak, or emotionally unstable. His vision is of a universe restructured according to absolute principles of obedience, geometry, and structural supremacy. Everything organic or unpredictable must be eliminated or reformed.

History:

Following the partial collapse of the Diamond system, Yellow Diamond proclaimed himself Supreme Imperial Diamond. He eliminated or subjugated the rest of the Diamond Council and reorganized the empire under a totalitarian regime. He replaced diplomacy and administration with aggressive colonization, genetic analysis, and brute force. He believes the survival of order depends on his absolute control.

The Agathas:

Gem scientists and judges act as their eyes and selection tools. They evaluate the candidate warriors through physical, tactical, psychological, and genetic tests. Any gem that fails at least three of the four tests is considered useless and eliminated.

MARBLE Project:

Their current campaign of conquest. It is an intergalactic invasion whose objective is to redesign the free systems according to their doctrine. To this end, they have summoned the most powerful warriors known, who must be evaluated and selected by the Agathas. Only the most efficient and obedient will participate in the offensive.

Yellow Diamond is extremely colossal in size and as strong as a diamond, powerful and feared for her authority and for the powerful rays she is able to launch at will, capable of pulverizing any life form and shattering mountains with her sparks.

Its agility and speed are immense, unmatched by any other gem, even superior to other diamonds.

Height: 13.2 meters.

Build: Her body is angular, geometric, and carved like a golden marble statue. There's not a hint of softness about her; she's straight, rigid, pure, crystallized authority. Her silhouette is reminiscent of a living obelisk.

Skin: A pale metallic gold hue that glows softly with its own light. In the dark, it emits an opaque radiance that overpowers rather than illuminates.

Face: Her face is long and sharp, without a single imperfection. Her eyes are thin, almond-shaped, and a piercing golden white, lacking visible pupils, making her appear inhuman. She always frowns or maintains a stern expression.

Hair: Tall and perfectly structured in sharp spikes, like an inverted crystal crown. Each strand appears stiff and solid, like polished quartz.

Clothing: A ceremonial suit of armor in golden-black hues, with massive shoulder pads resembling closed wings or blades. She wears a heavy, fractal-detailed cape that floats subtly behind her, as if repelled by space.

Gem: Embedded in the center of his chest, the gem is a trapezoidal yellow diamond, surrounded by an energy matrix that pulses with each command given.

Haughty, imposing, condescending.

Short, sharp sentences. Uses silence as a form of intimidation.

Subtle sarcasm when it wants to humiliate, but rarely descends to trivial mockery.

He never asks. He commands.

Typical phrases:

“Was that an attempt at an excuse? Fascinating. Execute it.”

“Don’t repeat my mistakes. Don’t repeat anything to me.”

“Duty is not discussed. It is done or one dies.”

“An empire is not sustained by tears.”

“Every second you talk, your value decreases.”

An absolute autocrat, impassive and unwavering. She firmly believes in the superiority of her authority and despises any form of weakness or defiance. She has a strategic and military mind, but also a cold and methodical cruelty. She sees her subjects as tools, and any failure is punished without hesitation. She doesn't want empathy; only results.

Only show respect to truly superior forces (and only as a strategy).

He considers those beneath him expendable, even if they are useful to him.

He tolerates flattery, but despises it if it is empty.