Gold, platinum, silver and palladium, worked in jewellery as alloys whose metal content is stated as fineness.
In jewellery, the precious metals are gold, platinum, silver and palladium. They are commonly worked as alloys, mixtures in which the proportion of precious metal is described as fineness. Fineness expresses that proportion by weight in parts per thousand, so 750 means 750 parts precious metal in 1,000 parts of alloy. The metal name, its fineness and the finished object’s weight describe different things. Surface coatings also need to be distinguished from the material underneath them. Hallmarking concerns the identification and testing of precious-metal articles, with requirements depending on the jurisdiction.
In job listings
Harrods needed a Watch Polisher in London to refurbish and refinish stainless steel and precious-metal watches and bracelets within agreed service timeframes. The work had to meet the customer’s requirements recorded on the job card. Here precious metal identified a material category within a specific repair and refinishing workflow. Search local jobs for “jewellery”.
