The Diamond Brain of Santa Tortuga as seen in "The Learnerer"
The Diamond Brain of Santa Tortuga is, as its name implies, a priceless gem is formed into the shape of a large brain. It is light blue and is slightly transparent. This diamond belongs to Ms. Von Hoosinghaus, and is kept in her mansion. It was also stolen by The Learnerer in his landmark episode, "The Learnerer".