Flat profile Zirconium ring with relieved black 1/2 round rail. Anodised center that allows different colors to be added into the center inlay. The cut through the center is a 2mm width that can be anodized (metal actually turns colors) to your favorite color. The flat profile face (rails) will really help to set this ring apart from others. Black zirconium rings are becoming very popular due to the same great qualities as titanium. Black zirconium is lightweight, durable and has the added luster and color.