#Necklace #Accessories #NaturalStone New item. This is a Terahertz tornado ring, said to be good for your health. It's a jet-black piece of jewelry. A shining, glittering Terahertz ring. A convenient free size! Although it's black, as you can see, it shines and sparkles brilliantly. It has a sparkle like a black diamond. Also, although it's black, it's a piece of jewelry that's never dull. And it's healthy! A wonderful piece of jewelry.