There are nine primary gemstones which are called the 'Nava-Ratna' and which are all seen as holy stones. Each of these stones is assigned to one planet.

Ruby is the stone of the sun, of the moon it is the (natural) pearl, the red coral is assigned to Mars, emerald is the stone of Mercury, yellow sapphire of Jupiter, diamond of Venus, the blue sapphire of Saturn, Hessonite is the stone of Rahu, the ascending lunar node and cat's eye is the stone of Ketu, the descending lunar node.

These stones receive the cosmic radiance and neutralize negative influence. Thus positive influences can unfold freely. Wearing the nine gemstones therefore prevents from creating bad Karma.

All nine stones together in one piece of jewellery create a own force field which helps the one who wears it. With the balance of the energy of the planets, the energy of each aspect of life is in harmony. A Navaratna pendant, bracelet or necklace brings luck, peace and wealth. It protects of bad spirits, the evil eye, enemies and even venom. It quiets the mind, supports the mental development of the one who wears it and thus supports the success of any project.

Navaratnas are powerful pieces of jewellery which have been recommended by astrologers for a long time.