Rings of Order

In the canceled title Sonic X-treme, the Rings of Order were six magical rings guarded by Gazebo Boobowski and his daughter Tiara (who also possessed the ancient art of ring smithing). Doctor Robotnik wanted the Rings and attempted to steal them, leading Gazebo to summon Sonic so that Sonic could find them first and protect them.

The name was presumably chosen in connection to the series' golden rings and to contrast with the "Chaos" Emeralds.