What is a Hallmark Unique Identification (HUID)?

The Government of India has made it mandatory for the introduction of a Hallmark Unique Identification (HUID) number in every piece of jewellery.

  • HUID is a six-digit alphanumeric code, or one that consists of numbers and letters. It is given to every piece of jewellery at the time of hallmarking and is unique for each piece.
  • Jewellery is stamped with the unique number manually at the Assaying & Hallmarking (A&H) centre.
  • The hallmark consists of three symbols which give some information about the jewellery piece. The first symbol is the BIS logo; the second indicates purity and fineness; and the third symbol is the HUID.
  • HUID are mandatory for 14-, 18- and 22-carat gold jewellery and artefacts.
  • HUID gives a distinct identity to each piece of jewellery enabling traceability. It is critical to the credibility of hallmarking and to help address complaints against adulteration.
  • In HUID-based hallmarking, registration of jewellers is an automatic process with no human interference.

(Source: The Hindu)

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