Cat's Eye is symbolism for Kethu (South Node).

Cat's-eye is a gem that produces a thin streak of white light across the top of the stone when the gem is cut a certain way. The streak resembles the pupil of a cat's eye. The streak seems to change position as the stone is moved. This change is known as the chatoyant effect and is caused by light reflecting from tiny hollow channels within the stone. Cat's-eyes have a silky lustre and display colours that include shades of yellow, green, red, and brown. Cat's-eyes are used in jewellery and for other ornamental purposes. The term cat's-eye used by itself describes only a semiprecious stone called chrysoberyl. The stone is also known as true cat's-eye or precious cat's-eye. Other varieties are identified by a specific gem name, such as tourmaline cat's-eye. Most true cat's-eyes are found in Sri Lanka.