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Items below a specified weight are exempt from hallmarking, so very lightweight items do not have to be hallmarked.

The exemption weights are:

  • Gold – less than 1 gram
  • Silver – less than 7.78 grams
  • Platinum – less than 0.5 grams
  • Palladium – less than 1 gram

Although these items do not need a hallmark they must still comply with the principles of the Hallmarking Act if they are to be described as precious metal .

For example an item weighing 4.5 grams and described as Sterling Silver must still have a composition of 925 ppt fine silver.