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When buying gold jewellery, terms like hallmarked gold, BIS gold, and BIS certified gold are often used interchangeably. But do they actually mean the same thing?
For a jewellery buyer, understanding these terms can make it easier to verify gold purity, read the marks on a piece of jewellery, and make a more informed purchase.
The important thing to know is that hallmarking is the system through which the purity of precious metal is officially assessed and marked, while BIS is the organisation that operates India’s hallmarking scheme.
So, when you see a properly hallmarked gold jewellery piece, the BIS hallmark is an important part of what you are looking at.
Let’s break down exactly what these terms mean and what you should check before buying gold jewellery.
What Is Hallmarked Gold?
Hallmarking is the official process of determining and recording the proportion of precious metal in a jewellery article.
In simple terms, a hallmark provides an independent indication of the purity or fineness of the gold in a piece of jewellery. BIS describes hallmarking as a guarantee of the purity or fineness of precious metal articles.
For a customer, this provides an additional level of assurance that the jewellery being purchased meets the declared purity standard.
For example, you may come across gold jewellery marked:
- 22K916
- 18K750
- 14K585
Here, the carat indicates the gold grade, while the three-digit number represents fineness in parts per thousand.
For instance, 22K916 means 22-carat gold with a fineness of 916 parts per thousand.
What Does BIS Mean in Gold Jewellery?
BIS stands for the Bureau of Indian Standards, India’s national standards organisation.
BIS operates the hallmarking scheme for precious metal jewellery and artefacts in India. The objective of the scheme includes protecting consumers against issues related to the purity of gold and silver.
This is where the confusion between “hallmarked gold” and “BIS gold” often comes from.
So, is hallmarked gold the same as BIS gold?
In the context of Indian gold jewellery, BIS hallmarking is the system through which hallmarked gold jewellery is assessed and marked under BIS standards.
Therefore, you may hear people say “BIS gold” when they mean gold jewellery carrying the BIS hallmark.
Rather than thinking of them as two different types of gold, it is more useful to understand the relationship:
- BIS: operates the hallmarking scheme
- Hallmark: marks the purity/fineness of the precious metal
- HUID: uniquely identifies the hallmarked jewellery article
What Does a BIS Hallmark Look Like?
Since the introduction of HUID-based hallmarking on 1 July 2021, a hallmark on gold jewellery consists of three marks:
- BIS Standard Mark
- Purity/fineness mark
- Six-digit alphanumeric HUID
BIS confirms that the HUID is unique to each hallmarked item and is traceable.
So, when examining a piece of hallmarked gold jewellery, these are the three key markings you should look for.
What Is HUID in Gold Jewellery?
HUID stands for Hallmark Unique Identification.
It is a unique six-digit alphanumeric code assigned to an individual hallmarked jewellery article.
The HUID adds another layer of traceability to the hallmarking system. Customers can use the Verify HUID feature on the official BIS Care App to check information associated with a hallmarked gold jewellery item.
This makes the HUID particularly useful when you’re checking a piece of jewellery before purchase.
What Do the Numbers on Gold Jewellery Mean?
One of the easiest things to understand when buying gold is the purity marking.
Here are some commonly encountered examples:
| Gold purity | Fineness |
| 14K | 585 |
| 18K | 750 |
| 20K | 833 |
| 22K | 916 |
| 23K | 958 |
| 24KS | 995 |
These are the gold grades currently permitted for hallmarking under the relevant BIS standard.
What does 916 gold mean?
916 gold refers to 22-carat gold with a fineness of 916 parts per thousand.
This is why the term “916 gold” is commonly used when discussing 22K gold jewellery.
Hallmarked Gold vs BIS Gold
This is the part that often causes confusion. Hallmarked gold refers to gold jewellery that has undergone the recognised hallmarking process and carries the prescribed hallmark marks.
BIS gold is a commonly used term referring to gold jewellery associated with the BIS hallmarking system.
So, rather than treating them as two competing categories, think of BIS as the organisation behind the hallmarking framework and the hallmark as the official purity marking on the jewellery.
The important thing for a buyer is not simply whether a seller uses the phrase “BIS gold” but whether the jewellery carries the appropriate hallmark and can be verified.
How to Check if Gold Jewellery Is Hallmarked
Before purchasing gold jewellery, take a moment to inspect the piece.
1. Look for the BIS Standard Mark
The first thing to look for is the BIS Standard Mark.
This indicates that the article carries the BIS hallmark under the hallmarking system.
2. Check the Purity Mark
Next, look for the caratage and fineness marking.
For example:
22K916 = 22-carat gold / 916 fineness
Understanding this marking helps you know what purity of gold you’re purchasing.
3. Look for the HUID
Current hallmarked gold jewellery carries a six-digit alphanumeric HUID.
This can be checked through the BIS Care App’s “Verify HUID” feature.
4. Check the Invoice
The invoice is another important part of your purchase documentation.
BIS states that the bill/invoice for hallmarked precious-metal articles should include details such as the description of the article, net weight of precious metal, purity in carat and fineness, and hallmarking charges.
5. Buy From a BIS-Registered Jeweller
BIS states that jewellers selling hallmarked gold and silver jewellery are required to be registered with BIS.
This is another reason why choosing an established, registered jeweller matters when making a significant gold purchase.
Why Should You Buy Hallmarked Gold?
Gold jewellery is both a personal purchase and, for many buyers, a significant financial one. Knowing the purity of the metal you’re paying for is therefore important.
Hallmarking provides third-party assurance of the declared purity, according to BIS.
It can also make it easier for customers to:
- Understand the purity of their jewellery
- Verify the HUID
- Maintain proper purchase documentation
- Compare jewellery based on gold purity
- Make more informed buying decisions
Is Hallmarked Gold 100% Pure?
Not necessarily. This is another common misconception.
Hallmarking does not mean every piece of jewellery is made from 100% pure gold.
Different grades of gold can be hallmarked, including 14K, 18K, 20K, 22K, 23K and 24KS, according to BIS.
For example, 22K gold contains a higher proportion of gold than 18K gold.
So, when buying jewellery, don’t simply look for the word “hallmarked”. Check the actual purity/fineness mark as well.
What Should You Check Before Buying Gold Jewellery?
Here’s a simple checklist you can save:
✓ BIS Standard Mark
✓ Caratage and fineness
✓ Six-digit HUID
✓ HUID verification
✓ Net gold weight
✓ Detailed invoice
✓ Registered jeweller
If you are unsure about a hallmark or the purity of an existing piece, BIS also states that consumers can have jewellery tested at a BIS-recognised Assaying & Hallmarking Centre on a chargeable basis.
Hallmarked Gold at VBJ
When you’re investing in jewellery that may become part of your family’s story for years to come, understanding what you’re buying is just as important as choosing the design.
At Vummidi Bangaru Jewellers (VBJ), customers can explore gold jewellery across different styles and purity options, with the focus on transparency, craftsmanship and an informed jewellery-buying experience.
Whether you’re choosing a traditional bridal piece, an everyday gold chain or a contemporary design, knowing how to read the hallmark allows you to appreciate not just how a piece looks, but what it represents in terms of gold purity.
Because buying gold should always come with confidence – in the design, the craftsmanship and the purity you’re investing in.
FAQs
Is hallmarked gold the same as BIS gold?
BIS operates India’s hallmarking scheme for gold and silver jewellery. “BIS gold” is commonly used to refer to gold jewellery carrying the BIS hallmark.
What does 916 mean in gold?
916 refers to a fineness of 916 parts per thousand and is the fineness marking associated with 22K gold.
What is HUID in gold?
HUID stands for Hallmark Unique Identification. It is a six-digit alphanumeric number that uniquely identifies a hallmarked jewellery article and can be verified through the BIS Care App.
How can I verify a gold HUID?
You can use the Verify HUID feature in the official BIS Care App to verify a hallmarked gold jewellery item’s HUID.
Is 22K gold the same as 916 gold?
Yes. 22K gold has a fineness of 916 parts per thousand, which is why it is commonly referred to as 916 gold.
Is hallmarked gold always 22K?
No. BIS permits several gold grades for hallmarking, including 14K, 18K, 20K, 22K, 23K and 24KS.
Does a hallmark guarantee gold purity?
Hallmarking provides third-party assurance of the declared purity under the BIS hallmarking system. If a hallmarked article is found to have lower purity than marked, BIS provides a consumer compensation mechanism under its rules.
What should I check when buying hallmarked gold?
Look for the BIS Standard Mark, purity/fineness mark and HUID, verify the HUID where applicable, and make sure your invoice clearly records the relevant jewellery and purity details.
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