Years and years ago after the rebellion against the Gem Homeworld, Sunstone's grandmother, a good friend of Rose Quartz was gravely injured, and used her dying energy to birth Sunstone's mother.
After the rebellion, they returned to their homeworld of vast deserts and jungles. Mother Sunstone was an infant, so she was escorted home by Grandmother Sunstone's closest ally, Amber.
Years past and Mother Sunstone created one of the most successful dynasties of all time. Giant temples were built, hidden treasures were discovered, and the population of her people was through the roof. Sunstone was the Princess to Mother Sunstone's queen, and they ruled over the kingdom for years. Until something strange happened.
Mother Sunstone was aging, and it was happening very fast. It was unknown to anyone, even Amber, that Grandmother Sunstone was in a relationship with a human during the time she gave birth to Mother Sunstone. This made Mother Sunstone mortal, and susceptible to death by old age.
The people realized this and quickly rebelled against the queen, as they saw her unfit to rule over them. They waited until night, and kidnapped Mother Sunstone from her bedroom, and buried her in the sand, throwing stones at her until she was no more. Mother Sunstone was helpless, seeing as the sun gems can't use their powers when there's no sun.
Amber was chosen as their new queen, and Sunstone, using her time warping abilities, was able to make it out of the desert kingdom, but was not able to save her mother from death.
Sunstone hasn't been seen or heard from by other gems or her people since, but she's done well for herself. She rules over a small group of bandits, who call themselves the Sun Squad. They are trained ninja's, who dress in colors that match the sands of the desert so you can't see them coming. They are known for their precision strikes with the shuriken, and for their ability to take out an enemy without making a single peep. Sunstone plans on using these ninja's to one day take back her kingdom, and keep her people in line so there's never a rebellion under her rule ever again.
-
Sunstone, referred to many by "Sun" is a very intense gem. Whether she's out on an adventure, or bossing around the Sun Squad in her hidden temple, her inner fire is always burning strong. Although a bit bossy, nothing would exist of the Sun Squad if it wasn't for her. She's quite the leader. A bit over the top with her star spangled personality, she manages to keep a smile on her face despite all that's happened to her, and is very warm to those who treat her with respect. She may have a bit of a temper, and still bears a few grudges, but she's just trying to do what's right for her before her fire dies out, just like her mother.
Sun is able to manipulate heat waves, whether she wants to start a fire or stop one, she's the master of flames and no one else has powers like her, not even her mother. She fights with two rings of light, one that is able to manipulate time and change colors of objects and people, and one that slices and burns through her enemies. When these rings are out, they also make her ability to manipulate heat waves even stronger. Her source of power comes from the gem on her heart, which sucks in all of the light and heat it can to make her as powerful as she is.
And here's how she looks:
http://i.imgur.com/GdYKHOq.png