Jasper is a Quartz-type Gem created on Earth by the Gem Homeworld. Despite the poor condition of the Beta Kindergarten she was made in, Jasper, unlike the other Gems made there, was considered to be the ultimate Quartz, stronger and tougher than the rest. She was originally made for Pink Diamond, though she was reassigned to Yellow Diamond after Pink's death at the hands of Rose Quartz, leader of the Gem rebellion against Homeworld. Despite her hatred for Rose over killing her leader, Jasper respected her skills in leadership and tactics. Thousands of years after the Gem war, Jasper was assigned to be the escort of a Peridot as she went to Earth to check on the growth of the Cluster, a Gem superweapon growing inside the Earth's crust. Jasper accepted in the hopes that she could find Rose on Earth and destroy the remnants of her army.
In Jail Break, Garnet threw her into one of the battleship's power sources, electrocuting her, and was caught in the ship crashing into Earth. After all of that, her only damage was a couple bruises and being winded.
In Alone at Sea, Lapis sent her flying with a water fist, and she survived.
In Crack the Whip, survived being slammed into a corrupted Gem hard enough to poof it
Gem Physiology: Gem bodies are fragile, and after sustaining enough damage they will disappear, leaving their gemstones vulnerable as they are forced to regenerate. Gems cannot regenerate if their gemstones are bubbled or contained in another object.
Gemstones: If a Gem's stones are cracked, it leads to them becoming corrupted beasts, making them less intelligent and more feral. If a Gem's stone is shattered completely, then the completely cease to exist.
Ill-Tempered and Irrational:
Fusions: Always gets her ass kicked by them, whether it be Garnet or Stevonnie.