# Hallmarking Act 1973, Paragraph 2


(1) A description indicating that an article, or the metal in an article, is of so many carats is to be presumed to be an indication that the article or metal is of gold, and that its fineness is that specified in the following table for that number of carats.
(2) This paragraph shall not apply if (as in a case where the article is a precious stone) the word ’carat’ is used as a measure of weight for precious stones, and not as a measure of fineness.
Table
Number of carats
indicates gold of a standard of fineness of
9
375 parts per thousand
12
500 parts per thousand
14
585 parts per thousand
15
625 parts per thousand
18
750 parts per thousand
22
916·6 parts per thousand
and so in proportion for any other number of carats.

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Source: https://www.legislation.gov.uk/ukpga/1973/43/schedule/1/part/III/paragraph/2 (the official version)
Page: https://openlegislation.uk/hallmarking-act-1973/schedule-1/part-III/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.