Hollow bangles, earrings and other jewellery can be produced by various techniques in which carat gold strip is formed into tubes by drawing it through steel dies. These can be plain tubes or textured, with twists, spirals and other shapes. These can then be shaped into circles and other shapes by wrapping it around dies. These can be welded or soldered seamless tubes or more simply seamed tubes. Often a base metal core is used around which the tube is formed and supported. This has to be removed by chemical dissolution at the end of the process.

Generally end-fittings or findings may be soldered on to give a final piece of jewellery. Final decoration consists of polishing or texturing (e.g. by sand blasting) and may include diamond faceting to produce a decorative pattern of bright facets.

For a more detailed explanation of the technology of hollow jewellery manufacture see article in Gold Technology No 35, Summer 2002.