Four Lucky Diamonds operates on a 5-3 grid with 10 paylines and incorporates a Wild symbol, Free Spins, and a Risk/Gamble (Double) feature. The game emphasizes an RTP range and a theme set around Green, Blue, Red, and Diamond motifs. The grid arrangement supports standard slot mechanics where Wilds substitute, Free Spins can trigger extended play, and the Gamble option offers a post-win decision to attempt a higher payout. Additionally, gemstone imagery and color transitions reinforce the diamond motif while remaining non-disruptive to gameplay.

RTP denotes the long-run statistical return. Free Spins grant additional spins without an extra stake. In practice, Wilds, Free Spins, and the Gamble feature shape win pacing and risk exposure within the game's volatility profile.

Key numeric details include a Top Win of x71, RTP of 94%, a minimum bet of USD 0.2, and a maximum bet of USD 50, with a volatility rating of Med-High.