Gems should be selected in a proper way by after thorough analysis of the individual's horoscope. An Astrologer will guide you which Gem is suitable for you. Each planet has different Gemstone. Gemstones help to ward off the evils related to the planets. The gems pertaining to a particular planet concentrates the positive energies as well as the specific color of the planet and funnels the effects in the body of the person. wearing it by using the system of a filter to allow that particular energy & color to get absorbed in the body. Gems should be selected without any impurities.