Cesusserite Gem

"The Cesusserite Gem. A dragon gem for Gerasecia to be protected by her fellow dragons. Now it got broken. Destroyed by Shining Armor... or maybe perhaps it was left as a mystery. I think this is some kind of nightmare that all over Harmonia had ever seen. Now what happened to the Cesusserite Gem fragments?"

--Su Ji-Hoon, The Death of a Gem

The Cesusserite Gem is the dragon gem of the dragon races in Gerasecia that it would be protected by the dragons and Gerasecia

It would be protected when the dragons in Gerasecia were being helped by the federal ponies of Gerasecia that it would made them protect them in USRAC War.

It could made every dragons in Gerasecia protect it while they can born their new baby dragons,which grew up later.

Until it has been destroyed and broken by a Belkan Grey Men pony member disguised as Shining Armor, it would be caused the dragon races help Gerasecia to attack Equestria before the restore of itself following The Journey Home.

Trivia

 * Like Brilyante ng Apoy - Hathoria's Fire Gem, Cesusserite Gem would made any dragon strength
 * When both of these gems has been destroyed, it caused Hathoria and Gerasecia unite together to attack on Equestria in Harmonia and other kingdoms in Enchantadia