BIS Hallmark Gold: How to Verify HUID and Check Your Bill

TL;DR: BIS Hallmark Gold Explained – Key Takeaways

• Start with the hallmark: check the BIS logo, purity mark and HUID rather than relying only on a seller’s assurance.
• The 3-Mark System: As of the latest updates, a valid hallmark consists of only three things: the BIS Logo, the Purity Grade (like 22K916), and the 6-digit alphanumeric HUID code.
• Verify HUID: use BIS Care to compare the recorded article type and purity with the item offered to you. A database check is not a guarantee against every kind of fraud.
• Check your district: the mandatory-hallmarking district list was amended again on 3 August 2026. Coverage and exemptions both matter; the March 2026 count is not a current nationwide rule.
• Old Gold is Safe: If you have unhallmarked gold sitting in your locker from 2015, it is not worthless. You can still sell it, but the jeweler will weigh and test it, or you can get it officially hallmarked yourself for better resale value.

1. Check the record before paying

A familiar jewellery shop can still leave you with questions about purity, weight and price. Ask to see the hallmark, verify the HUID and keep the itemised bill. These checks give you evidence to work with if something does not match; no label promises that every purchase will be problem-free.

2. What Exactly is BIS Hallmarking? (The 2026 Landscape)

The Bureau of Indian Standards (BIS) is the National Standards Body of India. Their job is to ensure that the products you consume—from drinking water to electronics to precious metals—meet strict quality and safety benchmarks.

Hallmarking is the accurate determination and official recording of the proportionate content of precious metal in an article. Simply put, it is a government-backed guarantee that if you are paying for 22 Karat gold, you are actually getting 22 Karat gold.

The mandatory-hallmarking district list

The 3 August 2026 amendment replaces the district annexure to the order. Check that list for the district concerned, rather than treating the earlier 380-district count as current. The order also has exemptions; location alone does not answer every case.

How is the Gold Actually Tested?

Your local jeweler does not stamp the hallmark themselves. That would defeat the entire purpose of an independent audit.

Jewelers must send their manufactured pieces to a government-recognized Assaying and Hallmarking Centre (AHC). These high-tech laboratories use X-ray fluorescence (XRF) machines and traditional fire assay methods to scientifically determine the exact purity of the metal. Only after the gold passes these rigorous tests does the AHC use a laser to engrave the hallmark onto the jewelry.

3. The Anatomy of a 2026 Hallmark: The 3-Mark System

If you look at a gold bangle bought in 2018, you might see four or even five tiny symbols stamped on the inside. Historically, the hallmark included the BIS logo, the purity grade, the assaying center’s logo, the jeweler’s specific logo, and sometimes the year of marking.

This old system was cluttered, hard to read with the naked eye, and unfortunately, easy for sophisticated scammers to duplicate using fake stamping tools.

For HUID-era gold jewellery, check the BIS logo, purity in caratage and fineness, and six-character HUID. The BIS general FAQ describes these three required components; do not infer authenticity just from how neatly the marks are arranged.

Mark 1: The BIS Standard Logo

This is the official seal of approval. It looks like a small triangle with a dot in the center and a line cutting through it. If this logo is missing, the jewelry is not officially hallmarked, no matter what the jeweler claims.

Mark 2: Purity Grade and Fineness

This tells you exactly how much pure gold is in the alloy. It is a combination of the Karat value (K) and the Fineness number (parts per thousand). For example, 22K916 means the item is 22 Karat gold, which translates to 91.6% pure gold.

Mark 3: The HUID Code

HUID is the article’s six-character alphanumeric identification code. Enter it in BIS Care’s Verify HUID feature and compare the result with the jewellery. Do not rely on the code alone without checking what the result describes.

4. Read the purity mark

Fineness describes the precious-metal content in parts per thousand. For example, 916 means 91.6% and 750 means 75%. Do not confuse a jewellery grade with a bullion grade.

The government’s March 2026 hallmarking update lists 14K, 18K, 20K, 22K, 23K and 24KS for mandatory hallmarking, and describes 9K as a voluntary grade. That is a dated statement of the framework, not a claim that every 24K item is 999-fineness bullion.

5. The HUID Revolution: Your Digital Gold Fingerprint

Before the introduction of the 6-digit HUID code, if you suspected your hallmarked gold was fake, you had to take it to an independent lab and pay for a test. Today, the power to audit a jeweler is literally in your pocket.

The HUID links an article to the BIS record. Check that record and retain your bill; neither a code nor an app result replaces investigating a genuine purity dispute.

How to check the HUID record

Whenever you are at a jewelry store and you select a piece to buy, do not pay until you perform this exact verification process:

1. Download the App: Open the Google Play Store or Apple App Store and download the official BIS Care App.
2. Find the Feature: Open the app and tap on the button that says “Verify HUID”.
3. Enter the Code: Ask the jeweler for a magnifying glass (a loupe) and read the 6-digit alphanumeric code engraved on the jewelry. Type this exact code into the app.
4. Read the Results: The app will instantly pull up the digital birth certificate of that specific piece of jewelry.

What the App Will Show You:

• The name and registration number of the jeweler who got it hallmarked.
• The name of the specific Assaying and Hallmarking Centre (AHC) that tested it.
• The exact date the hallmark was applied.
• The declared purity (e.g., 22K916).
• The type of article (e.g., Bangle, Ring, Necklace).

The Red Flags:

If the result describes a different article or purity, pause the purchase. Recheck the code and ask for an explanation; preserve a screenshot and contact BIS if the discrepancy remains. A mismatch is a warning that needs checking, not by itself proof of how it arose.

6. What Happens to Your Old, Unhallmarked Gold?

One of the biggest sources of panic when mandatory hallmarking expanded in 2026 was the fate of “locker wealth.”

Almost every Indian household has gold jewelry bought in the 1990s or early 2000s, long before BIS hallmarking became the law of the land.

Does the mandatory hallmarking rule make your old gold illegal or worthless? Absolutely not.

The mandatory rules apply to jewelers selling new gold, not to consumers holding old gold. Your old jewelry is perfectly legal, and you have two distinct options for dealing with it:

Option 1: Get It Hallmarked Yourself

If you want to pass an old unhallmarked necklace down to your children and want them to know its exact value, you can take it to any BIS-registered jeweler. They will facilitate sending your old jewelry to an Assaying and Hallmarking Centre. The AHC will melt a microscopic scraping, test the purity, engrave the corresponding HUID hallmark (e.g., 18K or 22K), and return it to you.

Option 2: Sell It As Is

You can still walk into any jewelry store and sell or exchange your old, unhallmarked gold. However, because it lacks a HUID, the jeweler cannot take your word for its purity.

Before agreeing to a sale, ask the buyer how the item will be tested and how the offered price is calculated. Do not consent to a destructive test without understanding it. The hallmark does not determine the buyback price or remove the need to compare written offers.

7. Exemptions: When is Hallmarking Not Required?

While the government wants a tightly regulated market, applying a laser-engraved 6-digit code to every single piece of precious metal is logistically impossible. Therefore, the BIS Act clearly defines certain exemptions where hallmarking is not mandatory:

1. Items Under 2 Grams: If you buy a tiny gold nose ring or a very thin chain that weighs less than 2.0 grams, it is physically too small to clearly engrave the three mandatory marks without damaging the structural integrity of the piece. These are exempt.
2. Watches and Fountain Pens: Luxury items where gold is used as plating or as a small component in a larger mechanism (like a Rolex watch or a Montblanc pen) do not require a jewelry hallmark.
3. Kundan, Polki, and Jadau Jewelry: Because these highly traditional art forms involve filling hollow gold shells with wax (lac) and uncut diamonds, it is technically difficult to accurately assay the pure gold content without entirely destroying the artisan’s work.
4. Jewelry for Export: If an Indian manufacturer is producing gold specifically to ship to buyers in Dubai or the USA, they do not need Indian BIS hallmarking, as the jewelry will be subject to the destination country’s own customs and purity standards.
5. Medical and Scientific Gold: Gold wire or thread used in medical devices or scientific instruments is exempt.

8. Keep purity verification separate from the loan or resale quote

A HUID record does not itself state a loan amount, interest rate or buyback price. Ask the lender or buyer for a written valuation and its deductions. Do not assume that a verified code means maximum borrowing, no testing or a guaranteed spot-price sale.

9. Conclusion: The Paisaseekho Buyer’s Checklist

Use the hallmark, the official HUID record and an itemised bill together when checking a purchase. These checks support a complaint if something does not match; they do not promise a problem-free investment.

Before you hand over your credit card or sign a massive UPI transfer at the jewelry store, run this final checklist:

1. Locate the Line: Ask the jeweler to show you the hallmark under a magnifying glass. Ensure it has the BIS Logo, the Purity Grade, and the 6-digit HUID.
2. Scan and Verify: Open the BIS Care App, enter the HUID, and ensure the app’s description perfectly matches the physical item in your hand.
3. Check the invoice: ask for the article description, net precious-metal weight, purity and hallmarking charges. HUID on the invoice is voluntary under the BIS jeweller FAQ, though keeping it with your records is useful.

Top 15 Frequently Asked Questions (People Also Ask)

1. Is BIS hallmarking mandatory for 24 Karat gold?

The jewellery mandatory-hallmarking order does not cover bullion and coins. BIS-approved refineries and mints can hallmark 995/999-fineness bullion or coins. See the BIS distinction.

2. Can I check the HUID code online without an app?

For the most secure and instant verification, the government highly recommends using the official BIS Care App available on iOS and Android. It is directly linked to the live BIS server, ensuring you are not looking at an outdated or spoofed third-party website.

3. What should I do if the BIS Care app says “HUID Invalid”?

Recheck the characters and try again before paying. If the result is still invalid or inconsistent, retain the evidence and ask BIS to check it. Do not treat an app error alone as a confirmed finding of fraud.

4. Does hallmarking increase the price of the gold jewelry?

The actual cost of hallmarking is incredibly low. The government has fixed the hallmarking fee at just ₹45 per article (plus GST), regardless of the item’s weight. So whether you hallmark a 5-gram ring or a 50-gram necklace, the official testing cost remains ₹45. A jeweler should not be charging you massive premiums “for the hallmark.”

5. What is the difference between KDM gold and Hallmark gold?

KDM gold is an outdated and now illegal manufacturing process. Jewelers used to mix gold with Cadmium (KDM) to solder joints together. However, melting cadmium releases highly toxic fumes that cause severe health issues for the artisans. The BIS banned KDM years ago. Hallmark gold uses safer alloys (like zinc or copper) and is scientifically certified for purity.

6. Do I have to pay GST on hallmarked gold?

Yes. Every purchase of physical gold jewelry in India, regardless of whether it is hallmarked or not, attracts a mandatory 3% GST. You cannot legally bypass this tax, and a proper GST invoice is required to prove your legal ownership of the gold.

7. Why do some jewelers sell 18K gold at 22K prices?

Check the declared purity and the per-gram rate used in your written quotation. For example, 750 means 75% gold content, while 916 means 91.6%. A HUID check helps compare the recorded purity with the item; it does not set the price or prevent every dishonest quotation.

8. Are silver items also hallmarked in India?

Yes! The BIS introduced hallmarking for silver jewelry on a voluntary basis, and as of late 2025, they introduced a revised standard (IS 2112:2025) that includes a similar HUID-based tracking system for silver, featuring purity grades like 925 (Sterling Silver), 990, and 999.

9. Can an old 4-mark hallmark still be trusted?

Consumers may sell their old hallmarked or unhallmarked jewellery to jewellers. That is different from the requirements for a jeweller reselling old stock. See the BIS consumer FAQ.

10. Does a hallmark guarantee the quality of the diamonds in the jewelry?

No. The BIS hallmark strictly guarantees the purity of the precious metal (the gold). It does not certify the cut, color, clarity, or carat weight of any diamonds or gemstones embedded in the piece. For diamonds, you must demand a separate certification from a gemological lab like GIA or IGI.

11. Can I get my gold hallmarked without a jeweler?

Consumers can have their hallmarked jewellery checked for purity at a BIS-recognised Assaying and Hallmarking Centre. Testing an item and obtaining a new hallmark are different services; ask the centre which it offers and how to arrange hallmarking through a registered jeweller. The BIS general FAQ explains consumer purity testing.

12. If my jewelry breaks, does the hallmark become invalid?

A damaged mark should not be treated as readable proof of purity. Retain the item, bill and any HUID record, and ask a BIS-recognised Assaying and Hallmarking Centre about testing or re-hallmarking. BIS says a damaged or erased hallmark can be re-hallmarked after the full assaying process if the article conforms to the relevant standard.

13. Is the hallmark permanent, or does it wear off?

Because it is heavily laser-engraved into the metal, a hallmark is highly durable. However, if you wear a ring every single day for 20 years, the friction against your skin and other objects might eventually fade the engraving. This is why keeping the original invoice with the HUID written on it is so important.

14. Do imported gold brands (like Cartier or Tiffany) need a BIS hallmark?

Yes. The Indian government mandates that any gold jewelry sold within Indian borders—whether manufactured locally by a traditional artisan or imported by a massive global luxury brand—must be tested and bear the Indian BIS hallmark and HUID code before being sold to an Indian consumer.

15. What is the penalty for a jeweler selling fake hallmarks?

The government takes hallmarking fraud incredibly seriously. Under Section 29 of the BIS Act, any jeweler found selling non-hallmarked gold in a mandatory district, or using counterfeit hallmarks, can face imprisonment for up to one year, or a massive fine that can be up to five times the value of the fraudulent gold sold.

Disclaimer

At Paisaseekho, our mission is to make you financially literate, not to tell you exactly where to put your money. The information provided in this article is for educational and informational purposes only and should not be construed as professional financial or investment advice. Gold prices are subject to market risks. Always insist on a valid GST invoice when purchasing precious metals and verify the BIS hallmark using official government tools.

Source check

Hallmark, HUID, invoice, consumer testing and district-list corrections checked against BIS FAQs and the 3 August 2026 order on 27 October 2026. The March 2026 purity-grade statement is dated separately. Tax, penalties, KDM and later silver standards have not been fully re-audited in this update.

Last Updated on 4 days ago by Team Paisaseekho