There are three general categories that the techniques of gold working fall under. The first category includes filigree and granulation, which are closely related. This category also includes soldering which is employed in the joining of both filigree pieces and granules to metal. The next category includes enamel and inlay which were common practices elegantly used by the Romans. The final category consists of engraving, carving, and piercing.
More evidence exists of piercing and engraving than carving.
Because of this more attention will be given to these two techniques than to carving.