In 14k Yellow Gold. 7/8 inch long (including spiral jump ring for easy putting on/taking off). 1/2 inch wide at widest. The Om symbol is the most sacred syllable, mantra, and symbol in Hinduism, representing the primordial sound of creation, the universe, and the ultimate reality. It signifies the union of mind, body, and spirit, often used to promote peace, inner harmony, and focus. 0.8g.