Mermaid’s Diamond Slot Review

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100% up to £100 Bonus & 50 Free Spins on

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Play Mermaid’s Diamond Slot at JeffBet

Mermaid’s Diamond is an online slot developed by Play’n Go. Released in 2017, this underwater-themed online slot has 5 reels with a 3-4-5-4-3 row layout, 720 ways to win using the Bothways mechanism, and a max payout of 5,000x on your stake. In the game, you will find expanding Wilds, random extra Wilds, random extra scatters, and free spins.

Mermaid’s Diamond is a beautiful-looking online slot. The symbols are finely detailed with vibrant colours. Likewise, the animations are sharp and rendered nicely. The background looks out upon the underwater realm of the ocean. There is a coral reef complete with sea anemones and fish swimming around. Strangely, the music is a bit dramatic when compared to the crisp-sounding and cheerful in-game sound effects. 

It has been said that untold riches have long waited at the bottom of the ocean, and this online video slot seeks to take you there. So, let’s find out how you can get your hands on some of that treasure in our Mermaid’s Diamond slot review.

How To Play the Mermaid’s Diamond Slot – Rules & Tips

You will find a Mermaid’s Diamond slot free play version and a paid online casino version. For both of these, the rules and gameplay are the same. The first thing you need to do to get started is find the bet box beneath the reels. Then, use the -/+ arrows on either side to select the amount you would like to stake. 

You can wager between £0.20 and £100.00 per spin, which you can adjust during base play. Once you have placed your bet, simply click on the green spin button to start your game.

Mermaid’s Diamond Slot Bonuses And Features

The Mermaid’s Diamond online slot awards wins when you land matching symbols on 3 or more adjacent reels. That said, this game also uses the Bothways mechanism. This means that you can win with matching symbols on 3 or more adjacent reels from left to right and from right to left. As a result, your chances of winning on any spin are doubled.

The symbols in this game are, of course, different sea animals. The low-paying symbols are the Cuttlefish, Starfish, and Skatefish. Wins with these symbols will yield multipliers between 0.1x and 0.75x on your stake.

The high-paying symbols are gemstones. They are listed below, along with their related multipliers for matching symbols on 3, 4, and 5 adjacent reels:

• Green Gemstone – 0.2x, 0.5x, and 1x.
• Blue Gemstone – 0.3x, 0.75x, and 1.5x.
• Red Gemstone – 0.5x, 1.25x, and 2.5x.
• Diamond – 1x, 2x, and 10x.

Mermaid Wild Symbol

The Mermaid is the Wild symbol for this game. That means it can substitute for any of the regular symbols above. But, it can not substitute for the Treasure Chest Scatter symbol.

Treasure Chest Scatter Symbol

Landing 5 Treasure Chest Scatter symbols across the reels in a single spin will trigger the free spins bonus round. 

Before the bonus round begins, you will choose one of the Treasure Chests. It will open and reveal the number of free spins you will receive for the bonus round. Up to 25 free spins can be won. Additionally, you can retrigger the bonus round by landing 3, 4, or 5 additional Treasure Chest symbols. Doing that will earn you 3, 4, or 5 extra free spins, respectively.

Diamond Collection Feature

During the free spins bonus round, any Diamond symbol that lands is collected. When you collect 5 Diamond symbols, one of the reels will be filled with Mermaid Wild symbols.

Trident Wilds Feature

On any non-winning spin during base play, Poseidon can summon extra Mermaid Wild symbols on 1 or 2 reels.

Divine Intervention Feature

If 4 Treasure Chest Scatters land on a non-winning spin, Poseidon can again use his powers to conjure up a 5th Treasure Chest Scatter symbol to trigger the free spins bonus round.

Mermaid’s Diamond Slot RTP

The return to player for the Mermaid’s Diamond slot is 94.45%. So, this game is a below-average RTP slot. Therefore, over time, you can expect to win back £94.45 when you stake £100.00 in the Mermaid’s Diamond slot UK version.

Mermaid’s Diamond Slot FAQs