Certification of banknotes


Everything you need to know about certification and how to have your banknotes certified.


The certification (also called "Grading" English term) of banknotes is a process which makes it possible to obtain a guarantee on the authenticity and the quality of a banknote of collection. It is produced by an independent organization made up of numismatic experts. This organization plays the role of certifier and therefore offers a guarantee on the value of the collector's note. The certified banknote is placed in a transparent plastic protection. This protection (called "slab") has a header with the identification of the banknote and its quality.The precision of the quality of a note is very important because it directly influences the estimation of the value of an old note. The quality given by the grading is a value positioned on a quality scale ranging from 1 to 70.


In France, the term “Faire slabber un billet” or “Faire grader un billet” is sometimes used. This means that we gave a ticket to an organization to have it certified. But beware, this service has a cost. It should therefore only be done in certain cases.

Numizon is a partner of the grading company PMG, world leader in the certification of banknotes.

The limits of certification

The limits of certification

Read this before getting your banknotes certified!

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Paper Money Guaranty

Paper Money Guaranty

PMG: World leader in certification

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2023 Prices

2023 Prices

Explanation of grading costs

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Which banknotes need to be certified?

Which banknotes need to be certified?

Banknotes we recommend for grading

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Explanations of PMG grades

Explanations of PMG grades

Description of state of preservation

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How do you get your banknotes certified?

How do you get your banknotes certified?

Numizon makes it easy.

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