The Skaia was a legendary gem passed down through the line of the Empress. Cygnus did not have the Skaia as Aria had given it to Phantom. Hilla later attempted to use this to try to trick everyone into believing that Cygnus was not the rightful Empress. However, Phantom showed up and ruined her plans. After the whole ordeal, Phantom leaves the gem with Cygnus and returns to his ship.