Ketu will awaken the desire for enlightenment and liberation. A gemstone for Ketu can heighten insight, perception and intuition. It is an aid to meditation and introspection. The gemstone for Ketu is Cat's Eye.
When Ketu is well placed a good Cat's Eye is said to boost willpower, focus and determination. It is also said to give protection; improving resistance to disease and the ability to handle environmental stress.