The aim of the game is to enter all one's pieces into the star corner on the opposite side of the board, before opponents do the same. Each player has ten or fifteen pieces. (Ten-piece Diamond uses a smaller gameboard than Chinese checkers, with 73 spaces. Fifteen-piece Diamond uses the same board as in Chinese checkers, with 121 spaces.)
To play Diamond game, each player selects one color and places their 10 or 15 pieces on a triangle. Two or three players can compete in Diamond game, never more than three.