Onyx is a type of chalcedony with bands of black or white color. While natural black onyx is rare, most onyx on the market is treated for its black color. Onyx stones are known for grounding, protection, and self-control. They act as a barrier against negative energy, providing a soothing presence. Use onyx birthstone as a gemstone for July. Onyx is believed to offer power, endurance, and a heightened awareness of surroundings without feeling down. Shop this loose gemstone on Raza gems and make Onyx Jewellery like rings, pendants and Onyx wedding rings.