Precious stone valuation in Paris

If you have a stone and you don't know its value, our precious stone valuation service in Paris allows you to find out about it. Also, in case the value is important, we can get a certificate of authenticity for you.

What you need to know about precious stone expertise in Paris

THEValuation of a precious stone aims to determine the value of the stone. To do this, you need a gemologist, jeweler or jeweler, who must be experienced in this field and have the necessary equipment.

The comprehensiveness of expertise depends on the information you need. But with a gemologist, you get all the elements you need to determine the price of a precious stone:

• the nature of the stone, for example a diamond,
• its color (hue, tone and saturation),
• its size or cut (round, oval...) and the quality of it, according to proportions and symmetry,
• its origin,
• its purity (depending on the inclusions)
• the possible treatments applied: traditional heating does not alter the value of a stone, or only slightly, as with Heated sapphire, but other treatments significantly lower its price;
• carats.

A gemologist can provide you with a laboratory certificate, to make this expertise official and attest to its value. Like The valuation of precious stones in Paris varies depending on the professional's services and the test equipment at his disposal, it is sometimes possible to have only a stone identified. That's what some people are looking for. For example for Recognize a sapphire Or am I in possession of a genuine ruby ?

With Maison Bonnot, you get an estimate in euros.

We also offer our services of gemologist in Angers.

We value your precious stones in Paris

Maison Bonnot expertises your precious stone in Paris and provides you with all the essential information you need to know its value. It is a good idea to call on a jewelry expert in Paris, with the constant evolution of the stone market. In addition to the increasing difficulty in finding certain stones naturally, this market is experiencing trends. A stone that was not very valuable a few years ago may become increasingly sought after. For example, this is what happens with the green sapphire.

Make an appointment

Why do your stone expertise at Bonnot Paris?

By choosing to have your precious stones appraised by Bonnot Paris, you are calling on a professional gemologist and gemstone dealer, who works without intermediaries. Expertise is complex, being dictated by a multitude of interdependent criteria. They require perfect mastery of various tools and to refer to highly precise technical criteria. Gemology is a scientific discipline that cannot be improvised.

At the same time, Bonnot Paris is also a jeweler. This double competence is ideal for having your stones or jewelry valued and benefiting from the best advice for buying precious stones or setting them on a new creation.

The price of a precious stone valuation

• Count €150 for an expertise.
• A certificate from the French gemological laboratory costs €150.

Obviously, Online precious stone valuation is impossible. It is essential to give us your stones for a proper expertise. Authenticating and valuing a gemstone in Paris generally requires one hour, although some expertise may take longer.