This Black Zirconium band with rose gold and sterling silver inlays is custom made to order. First, we precision grind the grooves with a diamond coated grinding wheel. Then, the precious Metalinlays are carefully pressed into the grooves and then shaved off flush to the ring surface. Black Zirconium bands begin as a light-gray Metalsimilar to titanium. The black color is achieved by heating the Metalto a certain temperature. Once the Metalhas been oxidized to black it is much more wear resistant than in its natural state/color.