The Sri Yantra is the geometric form of the mantra "OM".  This yantra was purchased by Swami Atmarupa near the Shiva temple in Deoghar, India.

The Sri Yantra's sacred geometry is believed to effect tremendous positive powers on health, wealth, personal relationships and brings an enormous amount of good luck.

This three dimensional sri yantra is carved in crystal.  It is then surrounded by a silver band to be worn as a pendant. 

Approximately one inch in diameter.  Chain not included.