Striking Diamond is a three-reel, three-row slot with a classic fruit-machine layout and a diamond-themed presentation. The base game uses five paylines, medium-high volatility, and an RTP listed at 96%. Symbols include cherries, lemons, plums, oranges, grapes, watermelons, bells, BARs, and a red 7 Wild that substitutes for most symbols except the Bonus and Super Bonus.
The demo version lets players play for free and practice before playing for real money. The main feature is the Running Wins game, which starts when three Bonus symbols land. During this respin round, only Bonus and Super Bonus symbols can appear, and each new symbol resets the respin count. Bonus symbols land on the outer reels, while the Super Bonus diamond appears on the middle reel and can collect values from visible bonus and jackpot symbols.
Additional features include Boost, Lucky Riches, and four jackpot levels: Mini, Minor, Major, and Grand. Jackpot symbols can appear during Running Wins and award fixed multipliers tied to the relevant prize tier. The game screen also shows hold-for-turbo controls, bet adjustment buttons, and a playing-for-fun mode used in the demo version.