Biggs Jasper is a Quartz Gem that was previously Corrupted due to the Corruption Light. Like many of Earth's corrupted Gems, she was healed and currently lives in Little Homeworld.
Appearance
Biggs is a standard rustic red/orange quartz soldier. due to her corruption, she now has three horns on her head.
History
While not too much information is given about her, it is implied through Bismuth that she was apart of the Crystal Gems back during the Gem War.
My Little Universe II
She briefly appears alongside a few other Amethysts fighting off Jasper. Once the fight broke up, she apologizes and says that quartzes are so used to fighting, being the thing they were made to do. She was given a break after the battle by the Harmony Gems.