Bet he couldn't believe his bad luck, he just couldn't get rid of it! The officer's son tried again. In 1890 he gave the stone to a chap called Edward Heron-Allen, a researcher at the Natural History Museum.
Ed's luck took a turn for the worse too and having discovered the stone's unpleasant history he threw it into Regent's Canal.
In a truly spooky twist the jewel was dredged up, sold to a dealer and returned to him three months later!