Why are seals and stamps so important, and why is knowing them one of the most important things that highlights the buyer's awareness and contributes to a conscious and distinctive buying process?
The answer is that understanding these details is important in determining the quality of gold. Certainly, these symbols and numbers are an identity for each piece, revealing its purity, origin, and credibility in the market, whether when selling or even when buying.
What are the seals and stamps on gold?
Seals and hallmarks are official marks that are engraved on gold to accurately identify its characteristics such as: carat, country of origin, and manufacturer.
It is divided into two main types:
The stamp: an official certification mark from a government agency confirming that the item has been inspected according to specified standards.
Seal: The signature or logo of the factory or manufacturer that made the piece and that guarantees the quality of the gold.
These two marks work together as an authentic guarantee of gold purity, and reveal much of the information hidden beneath the design, which is essential when buying and selling.
The importance of seals in determining the quality of gold
When a piece of gold bears a clear hallmark, it means that it has passed rigorous tests that have proven its purity and conformity to standards.
Each stamp indicates what it means and what its significance is:
- The percentage of pure gold inside the piece (18, 21, 24 carat…).
- The entity that examined or produced it.
- The extent of market confidence in this item.
- Clear hallmarks enhance the value of the item and give the buyer added confidence.
How does the hallmark determine the type and purity of gold?
Hallmarks often contain numerical symbols indicating the percentage of pure gold in the piece, such as:
24K: 99.9% pure gold
21K: 87.5% pure gold
18K: 75% gold
Sometimes another system is used, such as percentage numbers (e.g., 750 = 75% pure gold).
The presence of these markings makes it easier for the buyer to accurately determine the carat without the need for chemical testing.
The most commonly used types of seals and stamps
1. The mark of the standard
The primary hallmark indicates the percentage of pure gold and is considered the primary reference for assessing the value of the piece.
2. Country of origin stamp
It shows the country in which the item was made, and may include a symbol or logo specific to the country or manufacturer.
3. International Stamps
It is used in some countries within international standards, and indicates that the item complies with global inspection specifications, such as European or American standards.
Methods for verifying the gold hallmark
manual inspection
Use a magnifying glass to examine the fine details and ensure the clarity of the letters and numbers.
Testing through acids
It is a chemical test used in stores and laboratories by placing a special acid on gold to determine the purity of the gold and to check how well the true carat matches the existing hallmark.
Device testing
Devices such as XRF (X-ray machine) analyze the chemical composition of gold using the same X-ray beams, accurately revealing the chemical elements and showing the true percentage of gold.
Or a digital microscope, which clearly reveals, and a magnifier to magnify the details of the stamp to verify its authenticity.
How can you distinguish between a genuine and a counterfeit stamp?
Certainly, the methods mentioned above are the most important and common, but there are distinctive differences that lie in:
Original stamp: accurately engraved, contains no errors, and is fixed in a visible place.
A counterfeit stamp: It may be faded, unclear, blurred, or contain symbols that do not conform to official standards.
Comparing hallmarks to common, well-known marks: The validity of hallmarks can be verified by comparing common symbols with all the standards that are usually recognized in the markets.
Counterfeiting often appears in small details, so it is always advisable to buy from a trusted source and make sure to inspect the item.
The importance of hallmarking in gold pricing
Having a certified hallmark on the item makes it more valuable, because:
- It shows the percentage of pure gold.
- The buyer is exempt from additional inspection costs.
- It increases the confidence of markets and consumers in the product.
In contrast, unstamped gold sells for a lower price, and often faces difficulties when selling it later due to the lack of clarity of its properties.
Gold hallmarks in Saudi Arabia and Europe: A brief comparison
In Saudi Arabia: Seals and stamps are an official means of determining the purity of gold and documenting its source. Their mechanism varies from country to country according to the approved regulatory systems, while they all agree on a unified goal: ensuring quality, combating fraud, and enhancing confidence in the gold market.
Stamps in the Kingdom of Saudi Arabia
The Kingdom applies a rigorous system for testing and hallmarking gold, including specifying its purity (such as 18 or 21 karats), along with symbols indicating the testing or producing authority. These hallmarks are mandatory for both imported and locally produced gold and serve as a reliable indicator of the piece's purity.
Stamps in Europe
Gold jewelry in Europe is subject to strict government inspection.
In the United Kingdom: Symbols such as "22K" or "916" are used to indicate the percentage of pure gold.
In Germany: The factory mark is added to the stamp to authenticate the manufacturer.
Other global systems
In the United States: A numerical system (such as 750 or 999) is used to determine purity.
In India: Stamps bearing the National Bureau of Statistics (BIS) symbol and the caliber are used.
Despite variations in symbols and systems, hallmarking remains the scientific and legal guarantee of gold's value. Therefore, it is advisable to check for it when purchasing, as it is the primary indicator of purity and quality.

If you are interested in obtaining guaranteed and certified gold, never compromise on checking these marks before purchasing. Also, you should choose a reliable place to buy gold, and we advise you here to choose the Pearl Shine Gold and Jewelry store.