Jewellery Hallmarks

Q: What is the Pragnell Maker’s Mark?

It is the exclusive GPL (George Pragnell Limited) Maker’s Mark , guaranteeing provenance and meticulous craftsmanship in every piece.

For over 700 years, British hallmarking has verified the quality and purity of precious metals. Established in the 14th century, this tradition is a legal requirement in the UK, representing trust, distinguished heritage, and exceptional craftsmanship.

At Pragnell, every jewel bears hallmarks that confirm its authenticity, origin, and quality—upholding a tradition at the heart of British fine jewellery. To deepen your understanding of this practice, let us explore the fundamentals of jewellery hallmarks.

British jewellery hallmarks on Pragnell piece

What is a Jewellery Hallmark?

A hallmark is an official stamp from a UK Assay Office, certifying that a piece meets stringent legal standards for metal purity. First established in 1327, the hallmarking system is among the world’s oldest forms of consumer protection.

Pragnell Hallmarks

The Pragnell Seal

A distinctive emblem of British craftsmanship, the Pragnell Seal certifies the exclusivity and superior quality of each piece—serving as a hallmark found only on Pragnell creations.

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The Enterprise Mark

Introduced to commemorate Pragnell’s receipt of the Queen’s Award for Enterprise in 2018, this distinguished mark was applied to our jewellery throughout the award period, celebrating outstanding international growth and the prestigious honour bestowed upon the business.

The Makers Mark

Each jewel features the exclusive George Pragnell Limited (GPL) Maker’s Mark, verifying provenance and confirming adherence to the highest industry standards.

The Date Mark

A unique letter symbol, distinct from other hallmarks, records the year in which the piece was officially hallmarked.

UK Assay Office hallmarks – London, Sheffield, Birmingham, Edinburgh

The Assay Office Mark

This mark indicates the specific UK Assay Office—London, Sheffield, Birmingham, or Edinburgh—that tested and approved the jewel.

Precious metal purity marks expressed in parts per 1,000

The Metal Purity Mark

This essential mark certifies that the metal meets or exceeds the minimum legal standards for precious metal content, expressed in parts per 1,000. It applies to gold, silver, platinum, and palladium.

Frequently Asked Questions

Below are the answers to our most commonly asked questions. Should you want to find out more please feel free to Contact Us and begin your Pragnell experience.

UK jewellery hallmarks confirm the purity of precious metals and identify where and when a piece was tested and certified, ensuring both authenticity and compliance with legal standards.

Pragnell pieces may bear marks from London, Sheffield, Birmingham, or Edinburgh—the four UK Assay Offices authorised to test and hallmark precious metals.

It is the exclusive GPL (George Pragnell Limited) Maker’s Mark, guaranteeing provenance and meticulous craftsmanship in every piece.

Hallmarking is a legally mandated system protecting buyers by confirming the authenticity and metal purity of jewellery, a tradition sustained for over 700 years.

The date mark is represented by a letter corresponding to the year of hallmarking and must be matched to official date-mark charts used by UK Assay Offices.

Jewellery Hallmarks

What is a Jewellery Hallmark?