Soap Diamond

The Soap Diamond is a priceless diamond held at the Mineralogical Society.

Physical appearance
It is bluish and circular, attached to a golden necklace.

Scooby-Doo! Stage Fright
In the guise of the Phantom, Dewey Ottoman stole it from the top of the building and proceeded to go down the fire escape, where he was spotted by Mystery Inc. He fled to his car, leading to the gang following him in the Mystery Machine around Chicago.

Appearances

 * DTV20.