The jewelry is produced by stamping, called “die-struck.” A die can stamp out thousands of pieces in a few hours. A metal sheet is fed continuously into the press, compressing it into a mold using up to 50-ton pressure. Producing a die is expensive, making sense only for a large number of stampings. Die-struck jewelry is denser and more durable than jewelry made by casting. Stamped jewelry is also very cheap and has a distinct look most people find unattractive. There is only limited use of stamped parts in fine jewelry.