Half Of All Artwork In Circulation Today Could Be Fake

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Dressed in an immaculate white lab coat, Sandra Mottaz stares intently through a stereo microscope at a bold-coloured painting purportedly by French master Fernand Leger, searching for signs of forgery.

"Here, we can make out vertical lines in what could be a grid," Mottaz says, looking up from the shiny white instrument providing a three-dimensional view of the painting.

That could signal the painting is a fake, but artists themselves also use the technique to copy their own work onto different formats, so more tests are needed, she says.

Mottaz and her colleagues at the Fine Arts Expert Institute (FAEI) use cutting-edge scientific methods like radiocarbon dating and infrared reflectography to determine the authenticity of artworks, and sometimes to uncover unknown masterpieces. 

"When you buy an apartment, you always get an appraisal first. But in the art world, until recently, you could buy works for 10 million euros without sufficient documentation," says FAEI chief Yann Walther.

But that is changing amid soaring prices in an art market where works worth an estimated $60 billion change hands each year.

The ballooning amounts up for grabs have also hiked the incentive for art forgers, and scientists like Walther and Mottaz are increasingly being called upon to supplement efforts by traditional art experts and conservationists to authenticate works.

Half artwork in circulation fake

The art world has in recent years been rocked by forgery scandals, revealing fake works attributed to a long line of masters, including Paul Gauguin, Marc Chagall, Jackson Pollock and Leger.  

Experts estimate a full half of all artworks in circulation today are fake -- a number that is difficult to verify but that Walther says is, if anything, an underestimate.

Between 70 and 90 percent of works that pass through FAEI turn out to be fake, he says.

His institute sits inside the Geneva Freeports, a heavily-guarded toll- and customs-free zone where collectors from around the world store more than a million artworks, including Picassos, Van Goghs, Monets and apparently a Leonardo da Vinci.

It can be tricky spotting fakes with the naked eye, but top-notch lab equipment helps.

Mottaz carefully carries the Leger to another room where her colleague Valeria Ciocan uses infrared reflectography to confirm the grid underneath the working man's face, supposedly painted in 1954.

Lab chief Kilian Anheuser then moves the piece to the nearby x-ray room, where he determines that the pigments used are different from the ones Leger usually turned to in the 1950s.

This is still not hard proof of a forgery, says Anheuser, who wants to go on to radiocarbon date the paper, allowing him to determine if it is from trees felled before or after nuclear tests carried out in the 1950s.

If the paper can be dated to after 1955, when Leger died, the answer will be obvious, he says, adding though that he needs the go-ahead from the owner before moving forward with pricier tests.

Depending on what tests they run, scientific labs can charge clients up to 15,000 euros ($19,000) per painting, which might sound steep until you consider the value of many of the paintings they study.

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