Overgrown Memories ( A steven universe short story)

When a gem's form is injured, they retreat into their gems to repair themselves. But what happens when their gem gets damaged?
Without their gem to heal them, the person they once were disappears in a puff of smoke. Their form, gone. Their gem left useless where they once stood. The only thing that's left is a cracked gem and their weapon.
In most cases, the gem is taken or destroyed, but the weapon is left for the taking. Sometimes taken for spoils of war, sometimes taken as a reminder of a lost friend.