In repoussé, the reverse surface of a malleable metal is hammered to create a relief design. The metal is ornamented and shaped to form a raised design, usually following a sketch traced on its surface. It is a time-consuming method as it requires work on both sides of the jewel. The design, once embossed from the back, must be refined with tiny chisels on the front to bring out the exquisitely shaped forms. The result of this technique is a surface decoration of sculptural beauty that has the depth and shading of a relief.