Global encyclopedia of official hallmarks

Gold and silver objects (jewels & watches) can be worth more than melted gold, silver or platinum. Refer to the global encyclopedia of official hallmarks.

Buying & Selling

Official hallmarks are the key to authentification of gold and silver jewellery


Authenticating a piece of gold or silver is a delicate task which takes time and engages the responsibility of the person doing the expertise.

Be it gold, silver, platinum, or palladium, whether you’re an individual, an auctioneer, a jeweler or a collector, you will need a reliable tool to help you estimate the value of an object made of precious metal.

First world dictionary of official hallmark stamps.

When you realize that most objects (jewels, watches, silverware, etc.) can be worth much more than the melted metal from which they were made, to permit you to estimate their value as precisely as possible, you will be able to access to a unique database allowing you to consult a list of official stamps or hallmarks that have been affixed to jewels, gold pieces and silverware throughout the world.

We are making available to you the first world dictionary of official hallmarks. We have endeavoured to make our website informative, precise, complete and as reliable as possible.

Precise information which has been controlled and verified.

While preparing our unique database, it has been our goal to obtain for you the most exact and precise information available and to use this as a guide.

The conditions, places and dates of the stamp apposition has been verified and controlled by checking several sets of archives.


A wealth of information that cannot be ignored

On an object of jewellery or silverware, the official stamp gives you vital information that is difficult to obtain otherwise.

Information concerning the precious metal :

  • Obviously, you can see if your item is made of gold, silver, platinum or palladium.
  • You will also learn the purity of the metal (in carats or milliemes (thousandths)).
  • Perhaps you will find that your object has been made of only one metal or more than one precious metals.
  • Often certain pieces can be partly made of a precious metal and partly made of a more common metal.

An official stamp will give you all this information and even more !

Information about the origin, the manufacturer and/or control:

  • You will know in what country your object was made and/or controlled.
  • Sometimes you can even learn the region of the country in which it was made.
  • Often the stamp will indicate the city where it was made.
  • You can also find out information about the date or period of time in which it was made.

Special cases:

  • It is even possible that you possess a piece that was made for a royal family.
  • In addition, the stamp may show if your object was imported or exported.
  • Sometimes stamps were affixed to silverware or gold pieces that were made or sold for a special event (for example: a world fair).
  • Several very old groups of goldsmiths have also created their own marks. They had official recognition and we have included them in our references.

There are marks for an infinite variety of objects.

Thanks to our hallmark dictionary, you will be able to access an infinite quantity of information about silverware and gold objects:

Jewels: necklaces, earrings, rings, wedding bands, signet rings, bracelets, brooches, pendants, jewellery sets, etc.

Watches and clocks: watches, pocket watches, clocks, grandfather clocks, etc.

Silverware: place settings, forks, knives, spoons, plates, glasses, cups, platters, trays, candlesticks, tea services, etc.

Religious items : cups, chalices, reliquaries, crosses, candlesticks, candelabra, censers, vases for holy water, episcopal crosses, pectoral crosses, lamps, etc.

Other objects: toiletry kits (brushes, combs, miroirs…), lighters, pens, etc.

Coins and medals: coins, military medals, commemorative medals, religious medals, etc.

Accurate hallmark pictures

The image processing used has allowed us to make the most accurate reproductions possible of the hallmarks.

However, very slight differences, quite acceptable, can exist when comparing the original stamps (especially when very old marks have been used that are often present on altered documents or on old and used objects).

A historical perspective

When possible, we have endeavoured to add a complementary historical perspective to explain the signification of each stamp.

From the 13th century to the present

The oldest stamp we have referenced dates from the 13th century!

Let’s travel through the centuries and discover the different marking systems used by royalty and empires which no longer exist.

This will take us through a number of different countries and bring us back to our own century.

A tool based on archives and very old books

To create our database, we began by consulting archives and some very old books which talk about the subject of hallmarks:
These books are difficult to find as they are no longer in stock and out of print . In addition there were very few copies printed (sometimes only ten).

These books are only available in regional and national librairies, or in the antique shops of some countries.

Collaboration with official bodies

We were also able to obtain information from organizations responsible for the control and apposition of hallmarks in certain countries.

A labour of love by passionnate participants

Sometimes Internet users have guided us or provided evidence to complete our research.

A rigoureuse classification

Contrary to what you can find elsewhere on the net, our image library of jewelery, silverware and gold stamps was made following a rigorous classification of hallmarks, with precious metals, countries, dates, cities, etc.

Your answer in less than 5 minutes

Thanks to the power of our search engine, 96% of the time, you will find the full meaning of the stamp(s) on your jewelry in less than 5 minutes!

If this isn’t the case, go to our Helppage and you will find advice in order to refine your research and get results.

More than 6,000 stamps and 45 countries referenced

We have been able to locate and reference more than 6,000 marks from 45 different countries. This is unique in the world!

Exclusive and unpublished hallmarks!

In addition, we certify that many stamps on our site have never been published in any collection.

More than a dictionary, it’s an encyclopedia!

Moreover, our database can be compared to an encyclopedia as it contains all kind of information, numbers, dates, countries and places.

All this information has been accumulated over time by using translations of works printed in different languages and from different periods of time.

Regular updates

When new elements are made available to us, our datebase is updated.

Accessible at any time on your smartphone.

Our website has been adapted to modern mobile technology. Are you on the go? Are you at he home of a client?

Login to your account directly from your cell-phone or Ipad.

The desire to continually improve our data

Despite the constant care that we have taken to create, our tool could still be improved. Therefore, we would appreciate your feedback for improvements and any clarifications that we can add to our world encyclopedia of hallmarks.

Therefore, do not hesitate to inform us of any changes in the system used by your own country, the new stamps is use or the discovery of old stamps that no one knows about yet.

Whether or not you are a professionnal, we hope that our dictionary of world stamps will help you to understand and be more exact is the evaluation of the gold and silver objects you are trying to estimate.

Take advantage of this powerful tool right now!

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Take advantage of this unique site right now! It’s powerful, fast, and precise.