 The painting was estimated to be worth $2,400,000 in 1974, when it was damaged by vandals who scratched "IRA" in letters across the front.Alfred Allnatt also owned the Allnatt Diamond, which he purchased in the 1950s.At 101.29 carats (20.258 g), the Allnatt is the fourth-highest-priced yellow diamond ever sold at auction.