Our review of Diamond Jester cuts through the marketing and looks at what matters: how it plays and how it pays. ESA Gaming are the provider behind it, tuning the release for a high-variance maths model, with 95.99% RTP. You get a 5-reel grid running 20 paylines, all built around a joker theme. The maximum win sits at 5,000x, so there's serious upside on the table. Here's how it stacks up.
Written by Alex Crawford · Last updated: March 2026
At its core, Diamond Jester is a slot produced by ESA Gaming. Presentation-wise it's leaning into a joker aesthetic, and it leans toward a high volatility profile at a published RTP of 95.99%. Under the hood you'll find 20 paylines across 5 reels.
Where Diamond Jester earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. All told, it's a solid entry in the ESA Gaming catalogue.
At 95.99%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Diamond Jester features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Diamond Jester by ESA Gaming is a solid offering that delivers good entertainment value. The 95.99% RTP combined with high volatility creates a well-balanced gaming experience.