Cat’s eye gemstone which holds the substantial characteristics of the vengeful planet Ketu work according to the ketu's placement in the birth chart of an individual. Hence, it is not appropriate to say that cat's eye or any other stone carry side effect along with them. Contrary to this popular belief, wearing cat's eye or any other stone enhances the power of their respective planet in the birth chart of a human being. Cat's Eye brings Dreadful results when placed in the following houses 6th, 8th and 12th houses of its ascendants. Being positioned in these houses cat eye boost the power Ketu in your life and increases the trouble in your life. The 6th, 8th and 12th house signifies death, disease, expenses, hurdles and financial problems in your life. Hence, if ketu exists in the following houses, you must consult an astrologer before wearing this stone.