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Authenticating a work of art

At CIRAM, we put our expertise in physico-chemical analysis at the service of professionals to guarantee the reliability of the origin and dating of works of art.

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Why have a work of art authenticated?

The authenticity of a work of art determines its value, its legitimacy and its place in art history. Faced with the proliferation of fakes - often undetectable to the naked eye - traditional expertise is no longer sufficient. The slightest doubt can compromise a transaction, an attribution or damage the reputation of an institution.

Museums, auction houses, collectors and experts all demand reliable proof.

CIRAM provides them with rigorous, traceable and legally admissible scientific analyses, in complete confidentiality.

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They trust us

Leading museums and art professionals trust us to authenticate their objects.

The National Gallery
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Pasteur Institute
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Our analysis techniques for art object authentication

At CIRAM, we combine several analysis techniques to guarantee a reliable, objective and legally enforceable appraisal. Each method assesses a different aspect of the work:

  • Carbon-14 dating To determine the age of organic materials (wood, paper, textiles, ivory, plants, etc.).
  • Luminescence (OSL, TL) Ideal for terracotta, ceramics, porcelain and fired stone.
  • Pigment and material analysis Raman spectrometry, X-ray fluorescence, FTIR to identify components and spot anachronisms.
  • Stratigraphic study: to analyze the superimposition of paint and varnish layers.
  • Scientific imaging X-rays, infrared, UV and 3D scanning to visualize restorations, repentirs and internal structures.

Our team of experts selects the most appropriate techniques according to the nature of your object and your authentication objectives.

Find out more about our analysis methods

The steps in a CIRAM analysis

Each authentication follows a strict protocol, adapted to the specific features of the work being analyzed.

01 - Analysis of your needs

We talk to you to understand the context, the questions raised and any uncertainties related to the object.

02 - Choice of techniques

We select the most relevant analyses according to the materials, the state of conservation and your objectives.

03 - Sampling (if necessary)

We carry out micro-samples in situ, preserving the integrity of the work.

04 - Laboratory analysis

We carry out tests at our accredited facilities, with full traceability.

05 - Report submission

We provide you with a clear, interpreted and usable report.

Why choose CIRAM for art object authentication?

When you choose CIRAM, you choose scientific excellence at the service of the the art market. For over 20 years, we have been supporting museums, auction houses, collectors and experts with an independent, rigorous and confidential approach.

You benefit from :

  • Multidisciplinary expertise: our teams combine skills in chemistry, physics, dating and archaeometry.
  • Analyses carried out in France, in our own laboratories
  • Enforceable results: our reports are legally admissible and scientifically argued.
  • Prestigious references: world-renowned for the rigor of its analyses, CIRAM 's customers include prestigious institutions such as the Musée du Louvre in Paris.

Entrust your works to CIRAM for reliable, objective and recognized authentication.

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Are you asking yourself these questions?

Can you authenticate an object without damaging it?

Yes, we prefer non-destructive analysis or the use of micro-samples invisible to the naked eye.

What types of works can be authenticated?

Paintings, sculptures, ceramics, antique jewelry, manuscripts... Most materials can be scientifically analyzed.

How long does it take to authenticate a work of art?

Allow 10 to 15 working days on average, depending on the complexity of the techniques and the availability of the object.

Do you provide an official report?

Yes, our reports are admissible in court and can be produced as part of an adversarial appraisal.

How much does authentication cost?

It depends on the analyses to be carried out. We systematically provide a quotation and a personalized feasibility study prior to any intervention.

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Get all the answers to your questions!

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Your other challenges in the art market

Verifying the authenticity of a painting
Verifying the authenticity of a painting

Check the historical compatibility of a painting by studying the pigments, binder and support used in relation to the period advertised.

Assessing the conservation of a work
Assessing the conservation of a work

Identify past restorations and assess the work's state of preservation to guide its exhibition, sale and preservation.

Detecting a sculpture copy
Detecting a sculpture copy

Analyze the composition of materials to distinguish an old work from a modern reproduction, even if it has been cast or restored.

Dating an old work
Dating an old work

Use radiocarbon dating to accurately determine the age of your wood carving, ancient manuscript, painting or any other organic material, such as ivory...

Explore our dating and analysis resources

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