Play'n Go

Mermaid's Diamond

RARE Slots Video Slots Fantasy Fish Mythology Action & Adventure Gems Sea Treasure

Play Mermaid's Diamond slot by Play'n Go for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.1% of slots combine Pay Both Ways and Random Wilds / Additional Wilds.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

94.45%

return to player

Volatility

Medium volatility

variance

Max win

5,000×

top multiplier

Min bet

$0.20

per spin

Reels

720 (Bothway) lines

Player rating

4.5 ★

20 votes

DEMO Play free, no signup

Play'n Go

Embed on your site

4.5 / 5

20 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP6/10

RTP 94.45% → 6.0/10

Volatility8/10

medium → 8.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features5/10

7 features → 5.0/10

Game Mechanics6.2/10

f=7 r=5 p=720 → 6.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.2–100 (×500) → 6.0/10

Provider Reputation6.5/10

provider avg 6.5 → 6.5/10

Popularity0/10

synthetic proxy → 0.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 53 — Mermaid's Diamond by Play'n Go

https://slotranker.com/play-n-go/mermaids-diamond#score

How to cite

Spec sheet

Mermaid's Diamond at a glance.

Identity

Slot nameMermaid's Diamond

StudioPlay'n Go

Released9/20/2017

Math

SlotRanker Score53

RTP94.45%

VolatilityMedium volatility

Max win5,000×

Bet range$0.20 – $100.00

Player rating4.5 / 5 · 20 votes

Format

Reels5

Paylines720 (Bothway)

Layout5x3

Features

Themes

Expected average based on this slot's 94.45% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$4.44

Cost per session$4.44

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Mermaid's Diamond? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (94.45%), with wins capped at its top multiplier (5,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Mermaid's Diamond with other games

	Mermaid's Diamond Score 53This game	Under the Sea Score 75	King of Atlantis Score 82	Pearl Catcher Score 80	Siren's Riches Score 76
Identity
Studio	Play'n Go	Betsoft	CQ9 Gaming	All For One Studios	Red Tiger Gaming
Released	9/20/2017	5/15/2012	6/15/2021	9/29/2022	10/19/2023
Math
RTP	94.45%	96.4%	96.17%	96.4%	95.73%
Volatility	Medium volatility	Low volatility	High volatility	High volatility	High volatility
Max win	5,000×	—	—	2,500×	22,307×
Format
Reels	5	5	6	5	5
Layout	5x3	5x3	6x4	5x3	5x3
Paylines	720 (Bothway)	30	4096	243	2304
Min bet	0.20	0.60	5.00	0.20	0.10
Max bet	100.00	150.00	12500.00	20.00	10.00
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	—
Scatter symbol	✓	✓	—	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	✓	—	—	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Mermaid's Diamond.

Comparing against

Mermaid's Diamond

Play'n Go

RTP

94.45%

Max win

5,000×

Score

+ Multiplier+ Bonus Game

+ Multiplier− Scatter

+ Multiplier+ Bonus Game+ Respins− Free Spins

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