- Combination of RUBY (Sun), PEARL (Moon), RED CORAL (Mars), EMERALD (Mercury), YELLOW SAPPHIRE (Jupiter), DIAMOND (Venus), BLUE SAPPHIRE (Saturn), HESSONITE (Rahu), & CAT'S EYE (Ketu). Navratna is the exclusive arrangment of gems. Which is featured in various astrological books. It is found to be very effective for everybody. the best part of Navratna is..it can be worn be anybody and any age group. Even if one has no horocope. One can wear it without any horoscope consultation. it is found to be equally suitable for all. Whether its buiness person, executive, working ladies, house wives, school going children, retired person, old people.all. In Nava-Ratna, Gems are crystalline minerals or petrified material that can be used as a distinct and advantageous remedial measure in astrology. Gems are considered to be the best for strengthing the positive influences of planets. They intensify the rays of the planets they represent. Each gem stone is specific to ascertain planet and takes positive traits of that planet. People since ancient times have sensed powerful energies emanating from gemstone crystals and their ability to bring good fortune and ward off evil.