'Painting in the cells Why is it so difficult you ask? Like with cloisonné enamel there are tiny metal cells in the jewelry that the jeweler paints in. He often uses multiple layers of paint to created the textured beauty of a piece. And after each layer the piece most be fired. While painting there is a temporary backing. This backing is dissolved after the firing of the final layer. This allows the enamel to be more transparent than other enamels, almost like stained glass.'