The Faravahar is the most popular symbol among Zoroastrianism, meaning 'guardian angel' and represents life after death. Ahura Mazda is the creator and highest spirit worshipped in Zoroastrianism. The literal meaning of the word Ahura is 'Lord', and that of Mazda is 'Wisdom'.
This necklace would be a great symbol for you to wear, as it is assigned to protect and guide the particular person wearing it.
