9) Vincent van Gogh – Portrait de l’artiste sans barbe
Completed in 1889, it was one of the artist’s many self-portraits. What makes this one unique, however, was the fact it shows him “sans barbe” or “without a beard.” This oil painting was sold by the heirs of Jacques Koerfer (who was a German collector and former chairman of BMW) through Christie’s, New York, in 1998 for $71.5 million. When adjusted for inflation, this equals $90.1 million. The painting was said to be painted by van Gogh for his mother’s 70th birthday gift shortly before he committed suicide. It is worth noting that the selling price was more than double what this piece was expected to fetch.