Super Gem

Super Gems are collectible items in the Wii U game Captain Toad: Treasure Tracker. They serve the same purpose as Green Stars in Super Mario 3D World, Star Coins in the New Super Mario Bros. series and Star Medals in Super Mario 3D Land, and as said items, they are scattered around the stages, and sometimes a certain puzzle must be done to collect them. As in Super Mario 3D Land and Super Mario 3D World, they are used to unlock some levels. There are 192 Super Gems in Captain Toad: Treasure Tracker.

Trivia

 * In the Super Mario Mash-Up Pack in Minecraft: Wii U Edition, diamonds are replaced by Super Gems.