Most people will only ever see a 5.8-Karat Diamond when they are proposing, and that is for the incredibly rich out there. The rock was estimated to be worth around $46,000, and was left behind at baggage claim. It was later sold for around $23,000.
History is incredibly, as it allows us to learn about our past culture. Well, the Unclaimed Baggage Center managed to get a piece of history when they found a 1770s Violin stuffed inside of a lost case. It is now in a museum for things discovered in abandoned luggage.