Onyx stone is any engraved gemstone with a solid color base. Black onyx gemstone absorbs and transforms negative energy and helps to prevent the drain of personal energy. Onyx jewelry in every color whether black, blue, white or green; looks elegant and is perfect for any occasion. This semi-precious stone is affordable, yet elegant. Onyx stone is found in various regions of the world. Available in various colors, Shop online for onyx jewellery stones only on The Design Cart.