BIS Hallmark Explained: How to Check Gold Purity Before Buying

Quick Overview

• BIS hallmark is the official certification issued by the Bureau of Indian Standards (BIS) to verify the purity of gold jewellery sold in India.
• Every hallmarked gold jewellery piece carries a purity mark and a unique 6-digit HUID number for easy verification.
• You can perform a BIS hallmark check using the BIS Care mobile app or by checking the HUID on the official BIS database.
• Common gold purity codes include 999 (24K), 916 (22K), and 750 (18K), each indicating different levels of gold purity.
• Buyers should always verify the hallmark, compare the gold rate, and insist on a proper invoice before purchasing jewellery.
• Understanding the latest BIS hallmark rules helps you avoid fraud and ensures you invest in genuine gold.

Summary

The BIS hallmark is India's official certification that confirms the purity of gold jewellery. Every hallmarked jewellery item carries a purity code (such as 916 or 750) and a unique 6-digit Hallmark Unique Identification (HUID) number. Buyers should verify the HUID using the BIS Care app, check the jeweller's credentials, compare gold prices with the daily market rate, and always obtain a detailed invoice. Following these steps helps ensure you purchase genuine, certified gold.

Introduction

Buying gold is often associated with weddings, festivals, investments, and family traditions in India. However, determining whether the gold you are buying is genuinely pure can be challenging without proper certification. This is where the BIS hallmark plays an important role.

A hallmark serves as an assurance that the gold jewellery meets specific purity standards certified by the Bureau of Indian Standards (BIS). Whether you're buying a gold chain, ring, bangle, or coin, understanding what a BIS hallmark is, how to perform a BIS hallmark check, and how to verify purity can help you make an informed purchase.

This guide explains everything you need to know about BIS hallmark India, purity codes, verification methods, and the latest hallmarking rules.

What Is BIS Hallmark?

The BIS hallmark is an official certification provided by the Bureau of Indian Standards (BIS) that verifies the purity and fineness of gold jewellery.

In simple terms, it acts as a quality assurance mark, confirming that the gold meets nationally prescribed standards. Hallmarking protects consumers against misrepresentation and helps establish trust between jewellers and buyers.

The hallmark is applied only after the jewellery has been tested at a BIS-recognised Assaying and Hallmarking Centre.

Today, BIS hallmark India regulations require hallmarking for many categories of gold jewellery sold across notified districts, making it easier for consumers to identify certified products.

BIS Hallmark Meaning on Gold

Many buyers assume that seeing "916" alone means the jewellery is hallmarked. In reality, the meaning of the BIS hallmark goes beyond a purity number. A genuine hallmarked jewellery piece contains multiple identifying elements.

Purity mark

The purity mark indicates the percentage of pure gold present in the jewellery.

Examples include:

This purity code is one of the most important components of BIS hallmark gold.

HUID number

The Hallmark Unique Identification (HUID) is a unique 6-digit alphanumeric code assigned to every hallmarked jewellery item. The HUID enables consumers to verify BIS hallmarks through the BIS Care app. Since every jewellery item has its own unique code, tracing and verifying authenticity has become much easier.

BIS Hallmark Gold Purity Codes

Different jewellery pieces are made with different gold purities, depending on durability and use.

999 and 24K

999 represents 99.9% pure gold and corresponds to 24-karat gold.

This is the purest commercially available form of gold and is generally preferred for investment purposes, such as gold coins and bars. Because of its softness, it is less commonly used in everyday jewellery.

916 and 22K

916 indicates 91.6% pure gold, commonly referred to as 22-karat gold.

This is the most popular purity level for traditional Indian jewellery because it offers a good balance between purity and strength.

Many wedding ornaments, necklaces, bangles, and chains are crafted using 22K gold.

750 and 18K

750 signifies 75% pure gold or 18-karat gold.

It is widely used for contemporary jewellery designs, diamond jewellery, and gemstone settings because of its greater durability.

Also read:- Difference Between 22K and 24K Gold

How to Check BIS Hallmark

Knowing how to check the BIS hallmark can help you avoid counterfeit jewellery.

Hallmark placement on jewellery

The hallmark is usually laser-engraved on an inner or less visible surface of the jewellery. Depending on the jewellery type, you may find it:

• Inside rings
• On the clasp of chains
• Inside bangles
• On the back of pendants
• Near the hook of the earrings

The hallmark should clearly display both the purity code and the HUID.

HUID check on the BIS Care app

The easiest way to perform a BIS hallmark check is through the BIS Care mobile application. Steps include:

1. Install the BIS Care app.
2. Select the HUID verification option.
3. Enter the 6-digit alphanumeric HUID.
4. View the jewellery details registered with BIS.

If the information displayed matches your jewellery, the hallmark is genuine.

Jeweller credentials and bill check

Always purchase jewellery from an authorised jeweller. Before making payment:

• Ask whether the jeweller is BIS registered.
• Ensure the invoice clearly mentions:
• Purity
• Weight
• HUID
• Making charges
• GST

A proper invoice simplifies future resale, exchange, or dispute resolution.

How to Check Gold Purity Before Buying

Apart from BIS hallmark verification, buyers should perform a few additional checks.

Match purity to karat

Ensure the purity code matches the karat being advertised. For example:

• 24K = 999
• 22K = 916
• 18K = 750
• 14K = 585

If the jeweller claims the ornament is 22K but the hallmark reads 750, something is incorrect.

Check the weight and make charges

Gold jewellery pricing includes:

• Gold value
• Making charges
• GST

Compare the weight shown on the invoice with the actual weight of the ornament. Also, ask whether the charges are charged as:

• A percentage of the gold value
• A fixed amount per gram

This improves pricing transparency.

Compare the price with the daily gold rate.

Always compare the jeweller's quoted price with the prevailing daily gold rate before purchasing. The market gold rate changes daily based on international prices and domestic demand. Understanding the day's rate helps you determine whether the jewellery pricing is fair.

BIS Hallmark India Rules Buyers Should Know

The Government of India has strengthened hallmarking regulations to improve consumer protection.

Mandatory hallmarking scope

Under the current BIS hallmark rules, hallmarking is mandatory for specified categories of gold jewellery sold through notified jewellers in designated districts across India. The objective is to ensure standardisation and reduce fraudulent practices in the jewellery market.

Also read: How Much Gold Can You Legally Keep at Home in India?

What HUID replaced

Earlier, hallmarked jewellery carried multiple identification marks, including the jeweller's identification mark and hallmarking centre mark. The new HUID-based system simplified this process by assigning a unique code to every jewellery item, making tracking and BIS hallmark verification easier.

Exceptions and edge cases

Certain categories may be exempt from mandatory hallmarking, such as:

• Very lightweight jewellery below the prescribed limits
• Gold watches
• Fountain pens
• Kundan, Polki, and Jadau jewellery under specified conditions
• Jewellery meant for export

Buyers should still ask the jeweller whether the product falls under any exemption.

Also read: What is KDM Gold?

BIS Hallmarked vs Non-Hallmarked Gold

Choosing BIS-hallmarked gold provides greater assurance of purity and authenticity.

Common Hallmark Mistakes

Even informed buyers sometimes overlook important details.

Confusing 916 with the BIS hallmark

A "916" stamp alone does not automatically mean the jewellery is BIS certified. A genuine hallmark also includes the HUID and should be verifiable through official channels.

Trusting the stamp without verification

Counterfeit markings can exist. Always perform a BIS hallmark check using the BIS Care app rather than relying solely on the engraving.

Skipping invoice details

Many buyers focus only on the ornament and ignore the bill. Your invoice should include:

• Jewellery description
• Weight
• Purity
• HUID
• Making charges
• GST amount

These details become important for exchange, resale, insurance, or warranty claims.

BIS Hallmark Certificate Facts

Many consumers search for a BIS hallmark certificate, assuming a separate certificate is issued with every jewellery purchase.

In reality, hallmarked gold jewellery is identified through the hallmark engraved on the jewellery itself and the corresponding HUID recorded in the BIS database. Together, the purchase invoice and successful HUID verification serve as proof that the jewellery has been hallmarked.

For jewellers, BIS hallmark registration is required to legally sell hallmarked gold jewellery. Registered jewellers work with BIS-recognised Assaying and Hallmarking Centres to certify jewellery before it reaches customers.

Therefore, instead of seeking a separate certificate, buyers should focus on verifying the HUID and retaining their purchase invoice.

Conclusion

Understanding the BIS hallmark, purity codes, and verification process can help you purchase genuine gold with confidence. Before buying, always verify the hallmark, confirm the HUID, compare the day's gold price, review the invoice carefully, and buy only from authorised jewellers. These simple checks can protect your investment and ensure you receive the purity you are paying for.

If you're planning to finance your jewellery purchase, you can also explore the PLANET App by L&T Finance for convenient digital financial services and loan solutions designed to make your borrowing journey simpler.

Frequently Asked Questions

1. Is 916 hallmark 22K or 24K?

A 916 hallmark indicates 22-karat gold, which contains 91.6% gold and 8.4% alloy. It is commonly used for traditional gold jewellery because it offers both purity and durability.

2. What is the hallmark symbol for pure gold?

The BIS hallmark identifies pure gold jewellery and its purity code. For 24K gold, the purity code is 999, indicating 99.9% purity.

3. What are the new rules for the BIS hallmark?

The latest BIS hallmark rules require eligible gold jewellery sold by notified jewellers to carry a unique 6-digit HUID for easier identification and traceability. Buyers can verify this code using the BIS Care app.

4. How to check a 6-digit HUID number?

You can verify the HUID by opening the BIS Care app, selecting the HUID verification option, entering the unique code engraved on the jewellery, and matching the displayed details with your purchase.

5. Can we trust the BIS hallmark?

Yes. A genuine BIS hallmark indicates that a BIS-recognised Assaying and Hallmarking Centre have tested the jewellery. However, buyers should still complete a BIS hallmark verification using the HUID and obtain a proper invoice.

6. Is the BIS hallmark mandatory for gold?

Yes, hallmarking is mandatory for specified categories of gold jewellery sold by notified jewellers under the current BIS hallmark India regulations, subject to certain exemptions prescribed by the government.