Homeworld was a desolate place filled with quiet death. Ships left the docks every hour to fight their leader's wars for her. A green gem rested beside her ship, chatting with another green gem.
"Hello Peridot, where is your ship?" the gem asked her comrade.
"I need to get certain parts, Peridot," Peridot responded, "Do you have a Neptunium wrench and any extra plutonium?"
"Yeah, let me get that for you, Peridot," the Peridot responded, finding the materials.
Peridot equipped her ship with the plutonium for its core and tightened the loose bolts. She lifted off into the air within a couple minutes, but something went wrong and the ship exploded. Pieces flew past the Peridot that was knocked to the ground; she had forgotten that her plutonium was expired. She staggered to her feet and looked for the Peridot, finding a shattered gem. Her eyes opened wide, but she scooped up the pieces and walked to her leader's headquarters.
The gem got to her knees, "This Peridot operated with my expired plutonium. Her ship imploded on itself."
"You are lucky that you are good at what you do, I could have you broken," the leader said crudely.
"Y-Yes, Yellow Diamond, I know that my line is only average compared to your excellent purebreds," the Peridot started to sweat as she knew what was next.
"Stand up," Yellow Diamond frowned, "And walk over to the building next door."
"Yes, my Diamond," Peridot thought about escaping, but she knew she wouldn't get far.
Peridot walked inside and was immediately grabbed by two Amethysts. She was dragged into a small room and chained to a wall. The instant the gem looked up, lava poured onto her. Her form quivered but she was forced to stay stable. Once blond locks turned gray as the gem on her chest melted into a different shape. The gem was now a Vex, a failure among Peridots, but she had to accept it and move on without fighting back. She later became known as Vexus as Yellow Diamond's pet name for her. Her only job was to transport soldiers from place to place and occasionally fuse with her partners.