The Hope Diamond
The most famous cursed object in America sits behind glass at the Smithsonian's National Museum of Natural History. The Hope Diamond is a deep blue stone of 45.52 carats, and its legend says it ruins whoever owns it.
The real history is dramatic enough without help. In 1668 the French gem merchant Jean-Baptiste Tavernier sold a large blue diamond to Louis XIV, who had it recut into the French Blue. Thieves took it during the looting of the French crown jewels in 1792. A blue diamond turned up in the London collection of Henry Philip Hope by 1839, and the Hope name stuck. Pierre Cartier sold it to the Washington heiress Evalyn Walsh McLean for $180,000 in 1912. Her family later suffered real heartbreak, including the early deaths of two of her children, and that made her the curse's best-known example.
The trouble is that the curse story arrives suspiciously late. Historians suspect Cartier played up the dark legend to make the stone irresistible to a buyer who loved a good story. The tale that Tavernier pried it from an idol's eye and was torn apart by dogs is false; he sold the stone to the king and died peacefully in Russia. Harry Winston bought the diamond in 1949 and mailed it to the Smithsonian by registered mail in 1958 for $2.44 in postage. The mail carrier had a bad year afterward, but the museum has had nothing but crowds.
Verdict: DebunkedMany owners lived ordinary lives, the gory origin tale is false, and the curse appears to have been sales talk from the early 1900s.