The men's sterling silver 925 ring - was made using the lost wax casting process. I hand-carved manually the entire piece in wax and then the wax prototype was cast in sterling silver - the result is a solid silver piece that is statement reliable and also gives the feeling of quality and durability. Then oxidized silver in black to bring out the details. The underside of the ring is smooth, for more comfort and protects your belongings from scratches.