Diamond of Mine is a 1 vs Rivals Minigame in Wii Party U.
Gameplay
The Wii U GamePad player possesses 3 diamonds, and they must hide them in boxes by touching the screen. There are 3 rounds. The solo player wins if they have at least one diamond remaining after 3 tries. The team players win if they find all of the diamonds.
Note: If there are only 3 players instead of 4, the game will make the GamePad player hide 2 diamonds instead of 3.