Diameter 66.4mm 
Terahertz is a man-made stone that emits far-infrared and negative ion energy. The far-infrared energy helps promote metabolism, improve blood circulation, and ease muscle pain and inflammation. The negative ion energy protects the body from harmful radiation and pollutants. As Terahertz revitalises energy flow and enhances circulation in the skin, it is
said to slow down the aging process and help one appear more youthful.
Element: Earth
Chakra: Root