Russian billionaire Dmitry Rybolovlev owned art by da Vinci, Picasso and Magritte. But over more than a decade, he says his trusted art dealer defrauded him by as much as $1 billion. WSJ’s Kelly Crow tells us about the case that Rybolovlev alleges is the biggest art fraud in history. Further Listening: - The Basquiat Sisters on Managing One of Art's Hottest Brands  - How an Antiques Dealer Uncovered a Massive Museum Heist  Further Reading: - Fraud, or Just a Bad Deal? Oligarch and Sotheby’s to Battle in Court Over Rarefied Art Trade  Learn more about your ad choices. Visit megaphone.fm/adchoices