The game Diamond Deal is a single payline, three reel and three coin slot machine with a Special Bonus Feature screen, that becomes available when you play with three coins. 

If the reel on the extreme right stops with a Jewelry Box symbol on the payline, with three coins having been bet, you will collect one diamond segment. When you have collected all four segments of the Diamond you will then be able to play the Special Bonus Feature Screen. Accumulated segments will not be lost when you exit the game and will be waiting to help you on your way to bigger winnings when you return to the game.

As an added bonus the Diamond symbol is wild, but will not substitute for a Jewelry Box symbol. For example if you receive a 1-Bar, 2-Bar and a Diamond symbol you will be paid out as if you had received Any 3 Bar symbols.