Shadow and light: when art plays with truth
Imagine an auction room in Paris on an autumn evening. Crystal chandeliers cast a golden glow over the tense faces of collectors. At center stage, a painting attributed to Modigliani: a reclining nude with sensual curves, almond-shaped eyes empty of all expression. The expert announces the starting price: twelve million euros. Bids climb, hands rise, hearts race. Yet in the shadows, a curator from the Museum of Modern Art whispers to his neighbor: "This painting was done in a Montmartre garage in 1998. The pigments are too fresh, the canvas too smooth. It’s a fake."
By Artedusa
••10 min readThis scene, inspired by real events, illustrates a troubling truth: the art market is a theater where truth and deception dance an eternal waltz. Since antiquity, forgers have thrived, fooling the greatest collectors, the most prestigious museums, and even the most seasoned experts. But how do you tell an authentic work from a fake? How do you avoid falling for a painting done yesterday but presented as a seventeenth-century masterpiece? This guide doesn’t just give you tools. It invites you on a journey through history, techniques, and scandals that have marked the art of forgery.
01The forgers, those unrecognized geniuses
They are called Han van Meegeren, Wolfgang Beltracchi, or John Myatt. They are not ordinary criminals. They are cursed artists, virtuosos of the copy, alchemists capable of turning a modern canvas into an ancient masterpiece. Their story is one of obsession: succeeding where the masters failed, deceiving the world by creating works that should never have existed.
Take Han van Meegeren, this Dutch painter with a tragic fate. In the 1930s, as Europe sinks into war, he embarks on a mad enterprise: forging paintings by Vermeer, the seventeenth-century Dutch master. At the time, Vermeer was still little known, and his works were rare. Van Meegeren saw an opportunity. He studied the techniques of the period, mixed ancient pigments, used seventeenth-century canvases, and even invented a resin, Bakelite, to harden the paint and imitate the natural cracking of old paintings.
His masterstroke? The Supper at Emmaus, a painting he presented as a lost work by Vermeer. The painting was so convincing that it was bought by Hermann Göring, the number two of the Nazi regime, for the astronomical sum of 540,000 guilders (the equivalent of several million euros today). Yet after the war, van Meegeren was arrested for collaboration. To avoid prison, he confessed the truth: the painting was a fake. The experts, incredulous, asked him to prove it. In a few weeks, under police surveillance, he painted a new Vermeer, The Last Supper, thus proving his talent as a forger.
Van Meegeren’s story is that of a man who deceived the entire world, including the greatest experts. But it also raises a troubling question: if a fake is so perfect that it becomes a work of art in its own right, does it deserve to be destroyed?
02The art of forgery: a history that goes back to antiquity
Forgery is not a modern invention. It dates back to antiquity, when the Romans copied Greek statues to decorate their villas. Pliny the Elder, in his Natural History, tells how Roman collectors were willing to pay fortunes for imitated Athenian korai, presented as originals.
In the Middle Ages, monk copyists reproduced illuminated manuscripts, sometimes adding personal details. But it was during the Renaissance that forgery took on a new dimension. Florentine workshops produced copies of Raphael or Leonardo da Vinci, sold as originals. Michelangelo himself is said to have sculpted a Sleeping Cupid, artificially aged to sell it as an antique statue to a cardinal.
The seventeenth century marked the golden age of Baroque fakes. Forgers imitated Rembrandt, Rubens, and Vermeer, taking advantage of the growing demand from collectors. In the nineteenth century, with the industrial revolution, fakes became an industry. Parisian workshops produced copies of Corot, Millet, and the Impressionists, sold as originals. Corot himself is said to have remarked: "I signed more paintings after my death than during my lifetime."
Today, forgery has taken on a high-tech dimension. Forgers use 3D scanners, digital printers, and even artificial intelligence to create works of art. In 2016, a team of scientists used an algorithm to generate a painting in the style of Rembrandt, The Next Rembrandt. The result was so convincing that it was exhibited as an authentic work.
03The scandals that shook the art world
Each decade brings its share of scandals, revealing the scale of the problem. In 2010, the German forger Wolfgang Beltracchi was arrested after selling 45 million euros’ worth of fake Max Ernsts, Fernand Légers, and Kees van Dongens. His fatal mistake? A photo of his wife disguised as a 1920s collector... wearing a 1970s necklace.
In 2017, the painting Salvator Mundi, attributed to Leonardo da Vinci, was sold for 450 million dollars at Christie’s. Yet its authenticity is still debated. Some experts believe it is a work from Leonardo’s workshop, not by the master himself. Others go further: it could be a fake.
These scandals reveal an unsettling truth: the art market is a world where authenticity is often a matter of faith, not proof. A work is considered authentic as long as a recognized expert attests to it. But what happens when that expert is wrong?
04Authentication: an art in itself
Authenticating a work of art is like conducting a police investigation. You must study the clues, analyze the evidence, and sometimes call on science. Here are the key steps to avoid pitfalls.
1. The connoisseur’s eye: spotting anachronisms
The first tool is your gaze. An authentic work must match the artist’s style, technique, and era. For example, a painting attributed to Van Gogh should feature swirling brushstrokes, vivid colors, and a thick texture. If the painting is smooth, without relief, that’s a warning sign.
Anachronisms are also valuable clues. A painting attributed to Rembrandt cannot contain Prussian blue, a pigment invented in 1704. Similarly, a Monet cannot be painted on polyester canvas, a material invented in 1941.
To sharpen your eye, use a binocular magnifying glass and a UV lamp. The magnifying glass lets you observe cracks, those natural fissures that appear over time. An artificial crack, created with glue or heat, is often too regular. The UV lamp, meanwhile, reveals restorations and modern varnishes. An old varnish fluoresces yellow-green, while a modern varnish stays dark.
2. Provenance: the work’s history
An authentic work must have a documented provenance, that is, a history of its owners. Always demand: The original purchase invoice (with date, price, and the dealer’s stamp)., The certificate of authenticity (issued by an official committee or a recognized expert). et The catalogue raisonné (the complete inventory of the artist’s works).
Be wary of works "discovered in an attic" or "inherited from an uncle collector." These stories are often signs of a fake. Likewise, check that the work was not stolen or looted during the Second World War. Databases like the Art Loss Register or the ERR Project let you verify a work’s history.
3. Science at the service of art
When in doubt, turn to science. Specialized laboratories use advanced techniques to analyze works: X-ray radiography: reveals underlayers, pentimenti (changes made by the artist), and the support’s structure., Infrared: detects preparatory drawings under the paint., Raman spectroscopy: identifies the pigments used. et Thermoluminescence: dates ceramics and sculptures.
For example, a fake Pollock analyzed under an electron microscope revealed polyester fibers in the canvas, a material invented in 1941. Similarly, a fake Vermeer analyzed by Raman spectroscopy showed the use of cobalt blue, a pigment invented in 1802.
4. Official committees: the guardians of authenticity
For modern and contemporary artists, official committees are the guarantors of authenticity. Here are some of the most important: Picasso Administration (for Picasso’s works)., Marc Chagall Committee (for Chagall’s works)., Wildenstein Institute (for works by Monet, Renoir, and Degas). et Van Gogh Museum (for Van Gogh’s works).
These committees study submitted works and issue (or not) a certificate of authenticity. Be careful, though—some committees are stricter than others. For example, the Modigliani Committee has rejected more than 80% of the works submitted to it.
05The forgers’ mistakes: how to spot them
As talented as they may be, forgers often make the same mistakes. Here are the most common:
1. Anachronistic pigments
A painting attributed to Rembrandt cannot contain cobalt blue, a pigment invented in 1802. Similarly, a Monet cannot use titanium white, a pigment invented in 1920.
2. Modern canvas
A painting attributed to Monet cannot be painted on polyester canvas, a material invented in 1941. Old canvases are made of linen or hemp, handwoven.
3. The signature too perfect
The signatures of the great masters are often irregular, shaky, or poorly placed. A signature that is too neat, too regular, is a warning sign.
4. Artificial cracking
Natural cracks appear over time and are random. An artificial crack, created with glue or heat, is often too regular.
5. The absence of preparatory drawing
The great masters often made preparatory drawings before painting. A painting without an underlying drawing is suspect.
06What to do if you buy a fake
If, despite all your precautions, you discover that you have bought a fake, here are your options:
1. Legal recourse
In France, art forgery is punishable under Article 313-1 of the Penal Code (up to 3 years in prison and a 300,000 euro fine). You can file a complaint for fraud or take action for hidden defects (within 2 years of discovering the fake).
2. What to do with the work?
Keep it: some fakes become collectible items (like van Meegeren’s fakes exhibited at the Rijksmuseum)., Destroy it: some auction houses burn fakes to prevent them from circulating again. et Sell it as "attributed to": some fakes are sold as copies (with a clear mention).
07The ten commandments to avoid fakes
Never buy without documented provenance (invoices, certificates, catalogues raisonnés)., Have the work analyzed by an independent expert (not the seller)., Check the pigments and support (spectroscopy, microscopy)., Compare with authentic works (style, signature, technique)., Beware of "good deals" (a Picasso for 10,000 euros is a fake)., Consult official committees (Picasso Administration, Wildenstein Institute)., Use databases (Artprice, Getty Provenance Index)., Avoid private sales without guarantees (prefer reputable auction houses)., Educate yourself in art history (fakes are often pastiches of well-known styles). et When in doubt, abstain (better to miss an opportunity than buy a fake).
08Conclusion: the art of caution
The art market is a fascinating but dangerous world. Forgers are everywhere, and their techniques are becoming increasingly sophisticated. Yet by following these tips, exercising caution and rigor, you can avoid pitfalls and collect with peace of mind.
As Bernard Berenson, one of the greatest Renaissance art experts, once said: "A collector must be a detective, a historian, and a scientist. Otherwise, he is not collecting works of art, but illusions."
So before buying a work, always ask yourself this question: does this work speak to me, or is it its story that seduces me? Because, in the end, art is not just a question of authenticity. It is also a question of emotion. And no forgery, no matter how perfect, can ever replace that.