Duchess Diamond of the Netherlands

The Dutch Duchess Diamond appears in the 1987-1996 animated TV series, in the episode '''April Gets in Dutch'. As the turtles, April and Irma arrive to Amsterdam in the Netherlands, the diamond is put on public display for first time in 50 years.

Two Dutch jewel thieves, Spats Sparkle and Dag, are after it and attempt to steal it and sell it while replacing it with a faked diamond. Shredder and Krang are after the real diamond, to use it when opening a portal between Earth and the Volcanic Asteroid and send the Technodrome through.