BIS Hallmarking and HUID: What a Jeweller May Legally Bill You

Published: 18 October 2026 Category: how-to-guides | cardbuzz

Since June 2021, hallmarking of gold jewellery has been mandatory in India in a phased rollout, and every hallmarked piece now carries a six-digit HUID (Hallmark Unique Identification) number. The system exists to protect you — but it also created a new line some jewellers bill with more enthusiasm than the rules allow. Here is what hallmarking is, how to verify it, and what can legally appear on your invoice.

What hallmarking certifies

A BIS hallmark certifies that the gold content of the jewellery matches the claimed karat. The current hallmark has three components:

  1. The BIS logo (the triangle mark).
  2. The purity grade — e.g. 22K916 (meaning 22 karat, 916 parts per thousand fine gold), 18K750, 14K585.
  3. The six-digit HUID number, unique to that article.

The HUID is the meaningful innovation: because each piece carries a unique number registered with BIS, a jeweller cannot reuse one certificate across many pieces. You can verify any HUID on the BIS Care app — enter the number and the app shows the article type, purity, and the hallmarking centre that certified it. Do this at the counter before billing, especially for high-value pieces. A hallmark without a verifiable HUID is not a hallmark under the current system.

Note the scope: mandatory hallmarking applies to gold jewellery and artefacts. Gold coins and bars follow different certification norms (refinery assay certificates); the HUID regime is a jewellery system.

What the jeweller may charge for hallmarking

BIS notifies the hallmarking charges that assaying and hallmarking centres may levy, and jewellers pass through a nominal per-piece charge — a small fixed amount per article plus applicable GST. This is a tens-of-rupees line, not a percentage.

What this means for your invoice:

  • A per-piece hallmarking charge in the tens of rupees is legitimate and expected.
  • Hallmarking charged as a percentage of the jewellery value is not the notified basis — question it.
  • Hallmarking charges on every component separately of a single sold article (charging per charm on a bracelet sold as one piece, for instance) deserves a question about how the piece was hallmarked.
  • If the piece carries no verifiable HUID, there is nothing to pay for — a hallmarking charge on an unhallmarked item is simply invalid.

Because the notified amount has been revised over time, confirm the current figure on the BIS website rather than memorising a number from an old article (including this one — check the current notification).

Your verification routine at the counter

  1. Find the three marks on the piece — BIS logo, purity grade, HUID. On small items the marks are tiny; ask for the magnifier every jeweller keeps at the counter.
  2. Verify the HUID on the BIS Care app before billing. Mismatches (wrong article type, wrong purity) are rare but decisive — do not proceed until resolved.
  3. Match the purity grade to what you're paying for. 22K916 jewellery billed at a 22K rate is consistent; a piece marked 18K750 billed at 22K rates is not.
  4. Check the invoice line — the hallmarking charge should be a small per-piece amount. Note the HUID numbers of high-value pieces on the invoice itself; it strengthens any future claim.

What hallmarking does not do

Hallmarking certifies purity, not weight, not stones, not workmanship. It does not tell you:

  • Whether the weight on the invoice is correct (weigh the piece yourself).
  • Whether the diamonds or gemstones are what the seller claims (stones need their own certification, such as IGI or GIA for diamonds).
  • Whether the making charges are fair (see our guide to reading the invoice line by line).
  • The buyback terms (a separate question entirely).

A hallmarked piece with inflated wastage is still an expensive piece. The HUID answers exactly one question — "is this really 22K?" — and answers it well. Don't let it answer questions it wasn't asked.

Pitfalls to watch

Pitfall 1: The "hallmarked" verbal assurance. Without a verifiable six-digit HUID, the assurance is worthless. Marks can be faked; the BIS database entry cannot be faked by the jeweller.

Pitfall 2: Old stock without HUID. Jewellers were given time to clear pre-HUID stock during the transition. If you're shown old stock without HUID at a discount, weigh the discount against the weaker verifiability — and get the purity tested independently if the value is significant.

Pitfall 3: Paying hallmarking on exchange old gold. Hallmarking charges apply to the new article being sold. They have no place in the valuation of your old gold being exchanged.

Pitfall 4: Assuming hallmarking equals BIS registration of the jeweller. The hallmarking centre is BIS-licensed; the retail jeweller should be BIS-registered to sell hallmarked jewellery. You can check the jeweller's registration on the BIS website — a two-minute check before a large purchase.

The HUID system is one of the better consumer-protection mechanisms in Indian retail: a unique, verifiable, government-backed answer to the oldest question in the gold market. Use it at the counter, and let the invoice carry only what the rules allow.