Thank you for viewing. Price negotiations are possible! ALZUNI Black Onyx Silver Concho Extra Large Size 500-yen coin not included Black onyx is a representative black power stone, known as a power stone for warding off evil and bad luck. It has long been said to ward off evil and has been used as a protective amulet against evil spirits. Even today, it is expected to serve as a protective amulet by dispelling negative energy such as the owner's evil thoughts and bad luck. It is in beautiful condition, so please check the images. If you understand as shown in the images, please purchase.