Jyotisha is the traditional hindu system of astrology, also known as hindu astrology, indian astrology and more recently as vedic astrology. Astrology consists of a number of belief systems that hold that there is a relationship between phenomena and the events of descriptions of personality in the human world. The planets in the hindu astrology are known as Navgraha (literally nine-planets) with the addition of 2 shadow bodies Rahu & Ketu .
Each planet is governed with its respective gemstone. Even Rahu and Ketu possess a different gemstone, Chrysoberyl cat's eye for Ketu and Gomed for Rahu. To give power to certain grah astrologers recommends wearing a particular gemstone as per individuals kundali. But just wearing a gemstone is not enough, it should be "3D Astro Energized Gemstone". There are 3 dimensions in energization.