The historic Diamond Head pattern, dating back to the Middle Ages, became a modern legend with its appearance on an S.T. Dupont lighter in 1952. Dupont returns to the popular motif with the Diamond Head collection. The geometric design creates an infinite play of light and shadow, with alternating smooth and patterned surfaces that are plated in precious platinum. The large and medium-sized fountain pens have a luxurious, semi-flexible 18K gold nib overlaid with rhodium. Matching roller ball and ball pen available. Uses cartridges or converter.