The game boasts a 5x3 layout, a classic format that provides players with a familiar and comfortable gaming experience. With 20 paylines, there are ample opportunities for winning combinations to form. Diamond Supreme Hold and Win features an RTP ranging from 96.12% to 96.71%, offering players a reasonable return on their bets.

One standout feature is the Buy feature, which allows players to purchase immediate access to bonus rounds, skipping the wait for their activation during regular play. However, the real highlight of the game is the Hold and Spin feature, which can lead to significant wins.

In Diamond Supreme Hold and Win, the symbols add a touch of classic charm to the gameplay:

Low-value symbols: Plums, grapes, cherries, lemons, watermelons, and pineapples offer modest payouts, ranging from x0.04 to x2 the player's bet when the right combinations appear.

High-value symbols: Clovers, bells, bars, lucky sevens, and horseshoes bring in bigger rewards, offering payouts between x0.1 and x6 the player's wager.

Bonus diamonds: Sparkling diamond symbols display varying monetary values, ranging from x0.4 to x20 the player's stake. Landing six or more bonus diamonds on a single spin triggers the thrilling Hold and Win game mode.

Scatter stars: These stars can drop into play and trigger 10 free spins, accompanied by instant payouts of x3, x10, or x100 when three, four, or five stars land on the same spin, respectively.

Wild text diamonds: Wild symbols in the form of text diamonds can substitute for all other symbols except bonus diamonds and star scatters.

Landing four or five bonus diamonds on a single spin immediately awards the displayed diamond prizes. When six or more diamonds appear, the Hold and Win feature activates. This transports players to an empty reel set where only diamonds can land. You'll receive three initial spins, and each new diamond symbol that lands resets the spin count to three.

Once all spins are exhausted, the accumulated values of the diamonds on the reel set are awarded to the player. If you manage to fill the entire reel set with 15 diamonds, you'll receive an extra prize of x20 your stake.

Players can enhance the diamond wild symbols using the HyperBet function, increasing their stake at three different levels to add multipliers of x2, x3, or x6, which will apply to any wins involving the wild diamonds.

In the free spins game mode, star scatters can award additional spins, while a progressive multiplier increases by one after each win, enhancing the potential for larger payouts.