Like all onyx it is color enhanced with very high quality materials.

Healing Properties of onyx : Onyx is from the Chalcedony group of stones, which are worn in many cultures to ward off the evil eye. Onyx has served as a worry stone and is used as material for rosary beads. It is believed to soothe fears and can help a person maintain a positive outlook while awaiting the result of a source of anxiety. They also recommend it for improving concentration, calming sexual tension and ending marital disputes. It is considered good for opening all Chakras: Black Onyx-Root/Base Chakra, Green Onyx-Heart Chakra, Yellow Onyx -Solar Plexus Chakra, Blue Onyx-Throat Chakra. It has been used for treating glaucoma, epilepsy, hearing problems, heart trouble, ulcers and cell damage. Also recommend for athletes, who should wear it on the Solar Plexus to increase stamina.