The term Navgraha denotes the nine celestial bodies which are central to astrological calculations (and beliefs & not the nine planets as it is frequently erroneously translated). The Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn and the two shadow planets Rahu and Ketu constitute the Navgrahas. The nine "Grahas" or planets in our horoscope controls our karma, our desires and their outcomes. Each of these nine planets exerts an influence in our lives, which is called "Dasha" and it can be known from one's horoscope. Navagrah Pendant should be worn to reduce the negative effects and improve the positive energies of planets.
Navgrah Pendant in OM is highly effective in warding off the malefic effects of all the nine planets (navgrah). Sometimes more than one planets are adversely placed in ones horoscope or at times the correctness of the horoscope is doubtful due to non-availability of authentic data. Under such conditions, this pendent is very useful as all the semi-precious stones required to pacify the malefic effects of all the nine planets are studded in this single pendant itself alongwith positive effects of Om symbol.
The symbol OM is representative of Lord Ganesha who is also known as Vighnaharta which means Remover of all kinds of Obstacles. Hence, this symbol provides a very auspicious positive energy and wearer of this symbol remains free from any negative and evil energies.