OM

In Hindu mythology, Om or AUM is believed to be the first sound to pervade through the Universe at the beginning of time. Almost all Mantras are also initiated by reciting the word 'Om'. Worshippers of this sacred symbol are blessed with luck, material comforts and spiritual powers.
This is a lucky sign for prosperity, comforts and all round success. This may be worn around the neck or on a ring. The sign can be of gold, silver or copper.