Ketu Stone is another name for Cat’s eye gemstone (lehsuniya in hindi) and comes in various shades like green, yellow, and brown, because it has a unique optical color changing phenomenon called chatoyancy. As the name suggest, it belongs to the Ketu planet in Vedic astrology which represents the south node of the moon, bringing good fortune, happiness, and protection from danger when worn. The ketu stone price ranges from INR 500 to INR 45,000 depending on the color, clarity, cut, and origin. Hence a well cut ketu gemstone costs higher because it has a better chatoyancy value making it more appealing.