As per Vedic astrology, Navratna refers to the nine sacred gemstones that are believed to have a positive influence on the lives of individuals. Each gemstone is associated with a specific planet, and wearing the corresponding gemstone is believed to bring astrological benefits and balance the planetary influences in one's life. 1. Ruby (Manik) - associated with the Sun, it is believed to bring success, prestige, and good health. 2. Pearl (Moti) - associated with the Moon, it is believed to bring emotional balance, peace of mind, and success in creative pursuits. 3. Red Coral (Moonga) - associated with Mars, it is believed to bring courage, energy, and protection from malefic influences. 4. Emerald (Panna) - associated with Mercury, it is believed to enhance intellect, communication skills, and business success. 5. Yellow Sapphire (Pukhraj) - associated with Jupiter, it is believed to bring wisdom, prosperity, and good fortune. 6. Diamond (Heera) - associated with Venus, it is believed to bring love, beauty, and harmony in relationships. 7. Blue Sapphire (Neelam) - associated with Saturn, it is believed to bring discipline, focus, and protection from obstacles. 8. Hessonite (Gomed) - associated with Rahu, it is believed to bring success in career, protection from negative energies, and spiritual growth. 9. Cat's Eye (Lehsunia) - associated with Ketu, it is believed to bring intuitive abilities, protection from accidents, and material gains. It's important to consult with a qualified astrologer or gemstone expert before wearing any Navratna, as the suitability of a particular gemstone depends on an individual's astrological chart and certain guidelines should be followed to derive maximum benefits.