Another Diamond?
Steven looked out the window towards White Diamond ship. He was in a pink room, he assumed it belonged to his mother. That was where the ruler of all gem kind banished him. Steven looked down at his feet. He thought he could talk to her. He thought she would at least listen. But she didn't even let him get a word out. He remembered her Pearl. How her face was cracked, yet her gem was intact. Did White Diamond do that to her? But another question plagued Steven's mind as he remembered White Diamond's words. Did she expect him to continue the Earth's colonization? What about the humans? The corrupted gems? Steven couldn't do it. And from the way White Diamond was, she wasn't going to take no for an answer.
Steven went to a corner and curled into a ball, "I just wanted to fix everything my mom did. I don't want to hurt anyone. I want the Earth to be safe. I want to help the corrupted gems. But how am I supposed to do that if White won't let me?" Steven closed his eyes as he remained curled in his ball.
When Steven opened his eyes, he wasn't in his mom's room anymore, he was now in a long hall way, "What? Where am I?" Steven got up and began to walk. One side of the hallway was black, the other was white. As Steven walked he noticed engravings on the walls. Then he came up to a part of the wall on the black side. It was a image of his mother, Pink Diamond. Her image was pink, so it just popped out on the black side. The portrait was like on the moon base. It got her base form but not her details. Under her foot was her name.
Pink Diamond
The Last
"Could you have talked to White better?" Steven asked. He starred at his mother's mural for a while before continuing down the hall. This could only be a dream. Steven didn't know why, but every time he had weird dreams it let him to something.
Then again on the black side, was Blue Diamond's mural. It blended in more with the black. Under her foot was her name.
Blue Diamond
The Third
Steven didn't pay much mind. He didn't hate Blue Diamond, but he was still mad she took his father to the zoo. Sure, maybe Blue thought she was being merciful considering she believed the cluster was going to destroy the Earth. But she also helped put the cluster there.
He continued walking. Then he noticed Yellow Diamond's mural. The logical and stoic of the Diamond's. Like Blue and his mom, her name was under her foot.
Yellow Diamond
The Second
"What will you do when you realize I'm not mom?" Steven felt bad that Blue and Yellow still believed he was Pink Diamond. Odds where they were also going to expect him to colonize the planet. To have him continue his mother's work. Steven was going to do everything he could to keep Earth safe, but what if the Diamond's simply decide to give the Earth to another member of the authority. Take Steven and wipe out the life on Earth. Everyone, he cared about would die. Then everything his mother and the gems sacrificed would had been for nothing.
Steven came to the end of the hallway. Then he looked up, his eyes widened in confusion, "Wait? What?"
The hallway ended with a wall, a dead end. On the black side was White Diamond. That wasn't what surprised Steven, it was what was next to White Diamond's mural that shocked him.
On the white side, was another mural. One that Steven had never seen. The figure was female and completely black. Her design was more, organic than the other murals. Her hair was long and curled around her frame. She had no planets surrounding her. And she looked like she was wearing a dress. Her hands were together, as though she was waiting for someone to talk to her. She stood next to White Diamond, almost like an equal. On her forehead was the symbol that meant to show where her gem was. Steven finally looked down beneath their feet.
Black Diamond and White Diamond
The First of the Diamonds
"Steven?"
Steven jolted awake and looked up to see Pearl looking worried, "Steven, did she hurt you?"
Steven shook her head, "No," he noticed Pearl was the only one there, "Where are the others?"
"They couldn't get in," Pearl explained, "They only let me in because I told them I was your Pearl."
"Yellow and Blue?"
"They're talking to White right now," Pearl sighed, "I knew this was a bad idea."
"I just wanted to talk."
"Steven," Pearl said, "If you had listened to us, you'd know that White Diamond doesn't talk. She doesn't care about the gems who serve her. You saw her Pearl, she did that to her. She isn't going to lift a finger for the corrupted gems."
"But what else am I supposed to do?" Steven asked, "It's not enough with just three of us." Then Steven remembered his dream.
"Pearl? Is there another Diamond?"
"No Steven," Pearl shook her head.
"Are you sure, maybe there's a… Black Diamond?"
Pearl looked at him astonished, "Steven, where did you hear that?"
Something I've been thinking about. We have all of the popular color diamonds in Steven Universe, except for black.