The Microgaming classic casino slot game Diamond Deal is a 3 reel, 1 payline and 3 coin online slot machine. It has a wild symbol and a Bonus Feature as well as a dazzling diamond and jewels theme full of glitter and gold. The coin size for this casino slot game has a fixed value of $1, so the maximum bet per spin is $3 for a 3 coin play. Online slot players are offered 6 regular symbols and 8 winning combinations. Any win amount is the number of coins won multiplied by the number of credits bet per payline.

The Diamond symbol is wild and replaces any other symbol to complete winning combinations. The top jackpot of 3,000 coins is won when hitting 3 Diamonds on the payline while placing the maximum bet of $3 per spin. The second highest payout of 1,000 coins is won when collecting 3 Diamonds for a 2 coin bet. The Diamond symbol does not replace the Jewelry Box symbol to activate the Bonus Feature. To activate the Bonus Feature, players must bet 3 coins per spin and collect 4 Jewelry Boxes. After collecting them, they can access the bonus screen to select one of the 4 boxes, containing between 50 and 300 credits.