Hopedfore Double Diamond

The Hopedfore Double Diamond is a priceless gem on display at the Natural History Museum.

Scooby-Doo! (DC Comics)
It was the target of a jewel thief.

Appearances

 * Scooby-Doo! (DC Comics)
 * Monster Museum

Notes/trivia

 * The name is a play on the famous Hope Diamond. The real one was featured in another case, The Frozen Fate of the Hope Diamond.