Navratnas are nine holy stones which are possessed by the people as nine or more gem stones in a particular alignment are believed to possess a collective energy. The Nine Navratans are Ruby (Manik), Diamond (Heera), Pearl (Moti), Red Coral (Moonga), Emerald (Panna), Yellow Sapphire (Pukhraj), Blue Sapphire (Neelam), Hessonite (Gomed), Cat’s Eye (Lehsunia) and others. All these gems are associated with the planets in Vedic astrology and it is believed that these gems govern the energies of these planets. When one wears an arrangement of Navratan it is believed to act as a charm that gives one health, fortune and the ability to ward off evil forces due to balancing of all the seven Chakras. It is usually used in jewelry for round the clock effectiveness.