Navaratna refers to the nine gemstones related to the nine planets used in Vedic astrology. The word "nava" means nine and "ratna" means gem in the Sanskrit language. Navaratnas are considered auspicious and believed to bring good health to whoever wears it. It symbolizes health, prosperity, happiness and peace of mind. Also, it wards off negative energies and effects from planets, while strengthens the positive influences of the gems.