The infernal gem (teaser)

Long before the great war that happened on earth between the crystal gems and homeworld, an experiment was made to create a new type of gem. This experiment was performed on a planet whose environmental temperature was so high that homeworld could only sent gems with fire resistance to work on the experiment. The experiment was a success, but the awakening of this gem created in such an extreme planet ended up destroying the research center, for which the project to create gems of this type was canceled due to the consumption of energy and resources. But ... what will happen when this gem arrives at the earth?