Chaos Emerald Ring

This Chaos Emerald is regarded as the most powerful Chaos Emerald on Mobius.

Powers and Traits
When taken deep into the Secret Zone of Mobius and placed in an activation alter it grants the ability to sink one-hundred square miles of land into the ocean.

Owners

 * Dr. Robotnik - He originally had the ring until Easy Eddie stole it from him. After a few bungled attempts from Scratch and Grounder, Easy Eddie went to him to sell back the ring. Dr. Robotnik imprisoned him and went to the Secret Zone to use the ring only for Sonic to stop him.
 * Easy Eddie - He pickpocket the ring from Dr. Robotnik which made him most wanted by him. He didn't know the power of the ring and merely wore it, which ended up stuck on his finger. Sonic intercepted his abduction and took him to Professor Von Schlemmer to attempt to remove the stuck ring from his finger. After various attempts the ring was successfully removed but he stole it again to sell to Dr. Robotnik.
 * Sonic the Hedgehog - Discovering the dangerous power of the Chaos Emerald, he removed the ring from Easy Eddie after much hassle only for Eddie selling the ring to Dr. Robotnik. He goes to the Secret Zone to take the ring from Dr. Robotnik. To prevent anyone from taking the ring again he threw it far into the ocean so that it could never be found.

Trivia

 * In total there are five Chaos Emeralds in the cartoon (six including Mummified Hedgehogs blue emerald necklace). The first four were sought after by Dr. Robotnik and Sonic in the Quest for the Chaos Emeralds Saga.