At the 2004 Monaco Grand Prix, Jaguar went racing with very real, $250,000 diamonds mounted to the front of its F1 cars as part of a sponsorship deal with the movie ?Oceans Twelve.?

Less than a lap into the race, Jaguar rookie driver Christian Klien crashed into a wall, and his diamond disappeared, never to be seen again. That?s where the trail goes cold?and where speculation and conspiracy theories begin. Watch the full story of F1?s craziest PR stunt: https://www.youtube.com/watch"v=z2wDi5YY5UQ
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