Wearing onyx is said to alleviate tension, stress, worry and eliminate nightmares.  

The Isis Snake Necklace is made of oxidized sterling silver chain with a black onyx oval, 14k setting and 14k snake accent.  The chain measures 26" long.  The onyx is approximately 30mm x 15mm.  The snake measures approximately 1/2" x 1/4".  Handmade in Los Angeles, CA.