If you ever visit the Natural History Museum in New York City, make sure to check out the DeLong Star Ruby. Weighing 100.32 carats, this magnificent gem is a rich rouge colour with a distinctive 6-rayed star effect.

The DeLong Star Ruby gets its name from Mrs Edith Haggin de Long, who bought the stone from a renowned gem in 1937. Edith Haggin de Long donated the star ruby to the museum and the extraordinary ruby was named in her honour.

Of course, such a rare and precious gem was bound to be the target of a burglary, and in 1964, a thief known as Murph the Surf did just this. Thankfully, the gem was ransomed and returned to the museum.