Different Types of Gold Hallmarks Used Worldwide

Gold hallmarks play a significant role in determining the purity, origin, and authenticity of gold jewellery and items. These markings or stamps provide valuable information to buyers, sellers, and collectors. Understanding the different types of gold hallmarks used worldwide is essential for making informed decisions in the gold market. 

From purity marks to assay office marks and date letters, each hallmark carries specific meanings and standards that vary across countries and regions. In this article, we will explore the various types of gold hallmarks, shedding light on their significance and helping readers confidently navigate the world of gold.

Types of Hallmarks

Assay Office Hallmarks: Many countries have designated assay offices that apply specific hallmarks to certify the purity of gold. Examples include the “925” hallmark for sterling silver and the “375” hallmark for 9-karat gold.

Fineness Hallmarks: Some countries use fineness hallmarks to indicate the gold content as a percentage or parts per thousand. For instance, the “750” hallmark signifies 75% pure gold.

National Hallmarks: Different countries have their own unique hallmarks that represent their national standards. These hallmarks can include symbols, letters, or numbers specific to that country.

Date Hallmarks: In certain regions, hallmarks may include a date stamp indicating the year the item was assayed or manufactured. It helps identify the age of the piece.

Maker’s Mark: Some gold items bear the mark or signature of the jeweller or manufacturer responsible for creating the piece. This mark can provide information about the maker and may add value or prestige to the item.

Import/Export Hallmarks: In international trade, some countries use specific hallmarks to indicate that the gold has been imported or exported and has passed the required standards of both the exporting and importing countries.

Gold Hallmarking in Countries Around the Globe


Gold hallmarking in India is regulated by the Bureau of Indian Standards (BIS). The hallmarking system ensures the purity of gold jewellery through four mandatory marks: the BIS logo, purity fineness mark, assay centre’s mark, and jeweller’s identification mark. As of June 2021, hallmarking has become mandatory for gold jewellery and artefacts sold in India, ensuring standardisation and consumer protection.

United Kingdom

The UK hallmarking system has a long history dating back to the 13th century and is renowned globally for its quality assurance and consumer confidence. The gold hallmarking in the UK is overseen by four Assay Offices: London, Birmingham, Sheffield, and Edinburgh. Hallmarks are applied to gold items to certify their purity, authenticity, and origin. 

The hallmark consists of several symbols, including the fineness mark indicating the gold’s purity, the sponsor’s mark representing the maker or company, the assay office mark indicating the office that certified the item, and the optional date mark denoting the year of the assay.

United States

The US does not have a nationwide mandatory hallmarking system for gold. However, voluntary hallmarking programs exist, such as those offered by private organisations like the American Assay and Gemological Office (AGA).


In Switzerland, gold hallmarking falls under the responsibility of the Swiss Federal Office of Metrology (METAS). Precious metal items are hallmarked with a purity mark, a registered trademark, and a responsibility mark.


France has a mandatory gold hallmarking system managed by the National Assay Office (La Monnaie de Paris). The hallmark consists of several marks, including purity, year of assay, maker’s mark, and the hallmarking office’s mark.


The Spanish Royal Mint (Real Casa de la Moneda) oversees gold hallmarking in Spain. The hallmark includes the purity mark, the city mark, the sponsor’s mark, and the year of marking.


Dubai has its own gold hallmarking system overseen by the Dubai Multi Commodities Centre (DMCC). Hallmarks indicate the gold’s purity, the weight in grams, and the DMCC logo, providing assurance of quality and authenticity.


Ensuring gold hallmarking plays a crucial role when selling gold for cash. The presence of authentic hallmarks assures gold-buying companies about the purity and authenticity of the gold, making the process quick and seamless. Also, with accurate hallmarks, sellers can establish the value of their gold more accurately, leading to fair and transparent transactions.

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