Onyx stone set in a copper crown setting with a silver band. 
I chose to mix for the grounding properties of the onyx and copper. 
 
Your body uses copper to carry out many important functions, including making energy, connective tissues, and blood vessels. Copper also helps maintain the nervous and immune systems, and activates genes.
Black Onyx is believed to provide strength, protection, and grounding, making it a popular choice for jewelry and talismans. It is also associated with the root chakra, which is responsible for grounding and stability.