Chaos Emeralds & Power Rings - Sonic the Hedgehog Series Condition: New This listing is for 7 large size Chaos Emeralds & 5 large size Power Rings. Sonic figure not included. The emeralds are in accordance to how they appear in the original Sega Genesis game Sonic 3 & Knuckles. The Chaos emeralds and power rings set ship in a gift box. Each emerald is 1-3/4" (Width) and 1" (height). Power rings are about 2" diameter and made of brass plated steel.