Polished black onyx ring with band-style design Carefully carved from a single piece of natural stone, this black onyx ring features a band-style shape with a rounded profile and a fully polished finish, highlighting its elegant dark hue and deep shine. Black onyx is distinguished by its uniform and opaque color, with slight nuances that can range from intense black to slightly brownish black. Each piece has a width of between 5 mm and 6 mm, with an approximate thickness of 4 mm, with small variations due to the nature of the material. As it is natural stone, discreet veins, microfissures, or tone variations may be appreciated that do not affect its structure, adding uniqueness to each unit. The images are for illustrative purposes. The item received may have slight differences in tone, polish, or thickness. The product is offered per unit. Available in different sizes to choose from.