#Necklace #Accessories #NaturalStone New item. This is a natural black spinel and a terahertz tornado ring, which is said to be good for health. It's a ring with a contrast of jet-black spinel and shining terahertz. It's a nice free size! Although it's black, as you can see, it shines brightly. It shines like a black diamond. Also, although it's black, it's jewelry that is never understated. And it's healthy! It's wonderful jewelry.