#Necklace #Accessories #NaturalStone Brand new. This is a Terahertz necklace, said to be good for your health. 2mm, 41-42cm, plus an adjuster. Jet-black jewelry. A shimmering Terahertz necklace! Although it's black, as you can see, it shines brilliantly. It has a sparkle like a black diamond. Also, although it's black, it shines, so it's never dull jewelry. And it's healthy! Wonderful jewelry.