Name: Lapis "Dazzle" Lazuli
Backstory: In an alternate universe where Pink Diamond wasn't given the Earth, Dazzle crash landed on Earth after an unknown Alien shattered all of the ship crew and poofed Dazzle. Dazzle's gem fell into a river, ever so often drifting along with the strong stream.
A few weeks after she crash lands on Earth, a King finds Dazzle's gem and places it into a mirror, hoping it will make it magical for the women in his family. And it did, by imprisoning the poor gem, forced to look at freedom that was always out of reach.
Generations when by, and Dazzle quickly hated her existence as a mirror, contently having to tell the royal family how they look, agreeing with everything they say, and generally being an object they can brag about. She learns to be sarcastic and talk in the third person to get on their nerves, which was very entertaining. Whenever they try to get her to talk, she kept quite; she was always a quite gem, keeping to herself. Overall, she hated the royal family and did anything to make them leave her alone.
However, one day Dazzle makes a friend: A young princess. She learns that the princess was locked up in her room with Dazzle, all because she was a girl, and the current King and Queen wanted a boy, so they locked her up so no one would know of her.
Every day for the next 16 years, Dazzle and the girl would make each other laugh, do tricks with whatever they can find, and Dazzle would tell stories about her time in space. Those years were nice; they finally learned what true friendship was.
One day, the princess, now 18, tells Dazzle some terrible news: She was to be kicked out of the castle. Shocked at this news, Dazzle asks why. The princess explains that the prince, now the king, is kicking the princess out so he can have the throne all to himself. Dazzle knew what had to be done. She tells the princess to take the gem out of the mirror. More or less a little confused, the princess does. After 1,000 years of being imprisoned, Dazzle finally reforms, looking like a hunter, and swore to the princess that she will get her thorn back.
After a very carefully played assassination, the King is killed, and the princess became the Queen. Seeing as her job was done and she was no longer needed, Dazzle leaves and finds the Coastal Rangers Guild and learns the ways of being a ranger.
With her new knowledge, Dazzle is on a new quest: Learn how to go home to Homeworld.