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Gold Hallmarking (BIS): What to Check Before You Buy

Last updated 12 September 2026

A BIS hallmark is an official certification issued by the Bureau of Indian Standards certifying that your gold jewellery's purity is genuine. Since 2021, hallmarking with a 6-digit HUID is mandatory for gold jewellery sold across India.

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BIS Hallmark & HUID Verification Tool

Enter the 6-digit alphanumeric HUID or purity code stamped on your gold article to verify purity, gold percentage, and BIS standards instantly.

Enter 6-Digit HUID or Purity Stamp (e.g. 22K916, A7B9C3)

Try Preset Stamps:

✅ BIS Certified Hallmarked Gold

STAMP: 22K916

Purity Grade

22 Carat (22K)

91.6% Pure Gold (916 Fineness)

Today's Gold Value (10g)

₹1,32,650

Pre-GST market reference

Recommended Use

Bridal & Traditional Jewellery

Optimal strength & rich yellow lustre

Mandatory 3 Marks Present on Hallmarked Gold

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1. BIS Triangular Logo

Bureau of Indian Standards official triangular mark certifying IS 1417 purity standards.

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2. Purity & Fineness Stamp

22K916 (916 parts pure gold per 1000 parts alloy).

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3. 6-Digit Alphanumeric HUID Code

Unique laser-engraved code issued by a BIS Assaying & Hallmarking Centre (AHC).

Calculate Pure Gold Value:

grams

Estimated Value: ₹1,32,650 (pre-GST)

The Three Mandatory Marks to Check

When buying gold jewellery in India, inspect the item under magnification to ensure all three mandatory marks are laser-engraved:

1. The BIS Logo: A triangular mark representing the Bureau of Indian Standards.
2. Purity & Fineness Grade: Indicates exact purity:
- 24K999: 99.9% Pure Gold (Coins & Bars)
- 22K916: 91.6% Pure Gold (Traditional Jewellery)
- 18K750: 75.0% Pure Gold (Diamond & Gemstone Jewellery)
- 14K585: 58.5% Pure Gold (Everyday Wear)
3. 6-Digit Alphanumeric HUID: A Hallmark Unique Identification code (e.g. A7B9C3) unique to that specific item.

How to Verify HUID in the BIS Care App

The Government of India provides the official BIS Care App (available on Android and iOS). You can verify any hallmarked gold article before making payment:

Open the official BIS Care App on your smartphone.
Tap on "Verify HUID".
Enter the 6-digit HUID engraved on your jewellery piece.
The app will instantly display the registered Jeweller Name, AHC Centre Name, Jeweller BIS Registration Number, Date of Hallmarking, and Certified Purity.

Check the Rate & Billed Invoice

Hallmarking confirms purity, not price. Always compare the day's gold rate today and check making charges across jewellers before buying.