Get a Demarteau Certificate of Authenticity for your painting or a COA for your Boucher drawing or print.

For all your Demarteau artworks you need a Certificate of Authenticity in order to sell, to insure or to donate for a tax deduction.

How to get a Demarteau Certificate of Authenticity is easy. Just send us photos and dimensions and tell us what you know about the origin or history of your Demarteau painting, drawing or print.

If you want to sell your Demarteau painting, drawing or print use our selling services. We offer Demarteau selling help, selling advice, private treaty sales and full brokerage.

We have been authenticating Demarteau and issuing certificates of authenticity since 2002. We are recognized Demarteau experts and Demarteau certified appraisers. We issue COAs and appraisals for all Demarteau artworks.

Our Demarteau paintings, drawings and print authentications are accepted and respected worlwide.

Each COA is backed by in-depth research and analysis authentication reports.

The Demarteau certificates of authenticity we issue are based on solid, reliable and fully referenced art investigations, authentication research, analytical work and forensic studies.

We are available to examine your Demarteau painting, drawing or print anywhere in the world.

You will generally receive your certificates of authenticity and authentication report within two weeks. Some complicated cases with difficult to research Demarteau paintings or drawings take longer.

Our clients include Demarteau collectors, investors, tax authorities, insurance adjusters, appraisers, valuers, auctioneers, Federal agencies and many law firms.

We perform Gilles Demarteau art authentication, appraisal, certificates of authenticity (COA), analysis, research, scientific tests , full art authentications. We will help you sell your Gilles Demarteau or we will sell it for you.

Gilles Demarteau was an 18th century Flemish artist. He was primarily an engraver, and created a number of portraits, as well as genre scenes.

Still wondering about an 18th century European engraving in your family collection? Contact us…it could be by Gilles Demarteau.