Popularly used in yoga and meditation, Om is the mantra considered to be the sound of the universe. Closely linked with mindfulness and the state of consciousness, Om describes the harmony within. Popularly used in yoga and meditation, Om is the mantra considered to be the sound of the universe. Closely linked with mindfulness and the state of consciousness, Om describes the harmony within. Diamond pendant necklace in solid 9ct white gold. Polished/Textured Finish. Size: 16.3 x 16.3 mm (0.64 x 0.64 in). Material: 9ct White Gold. Total metal weight: 3.08 gr. 36 round cut diamonds (G colour, SI1 clarity) = 0.4 ct total. Colour: Clear. Diamond colour: G. Stone cut: Round Cut. Anniversary: 10th Anniversary, 60th Anniversary. Birthstone: April.