RubyPlay
J Mania Diamonds
Play J Mania Diamonds slot by RubyPlay for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
—
return to player
Volatility
—
variance
Max win
1,000×
top multiplier
Min bet
$1.00
per spin
Reels
5
30 lines
Player rating
3.6 ★
19 votes
DEMO Play free, no signup
RubyPlay
Why this score
Partial data (71%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP—
no data
Volatility8/10imputed
imputed medium (unknown) → 8.0/10
Win Potential6/10
x1000.00 (1000×) → 6.0/10
Features10/10
9 features → 10.0/10
Game Mechanics7.3/10
f=9 r=5 p=30 → 7.3/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility6/10
1–250 (×250) → 6.0/10
Provider Reputation7.5/10
provider avg 7.5 → 7.5/10
Popularity0/10
synthetic proxy → 0.0/10
Spec sheet
J Mania Diamonds at a glance.
Math
Index score66
RTP
Max win1,000×
Bet range$1.00 – $250.00
Player rating3.6 / 5 · 19 votes
Format
Reels5
Paylines30
Layout5x3
Features
Themes
Compare J Mania Diamonds with other games
 J Mania Diamonds Score 66This game |  9 Blazing Diamonds Score 67 |  Dracula's Gems Score 70 |  Jungle Adventure Bonus Score 62 |  Africa Score 57 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | — | 4/2/2021 | 10/6/2019 | 3/2/2024 | 4/23/2019 |
| Math | |||||
| RTP | — | 96.33% | 97% | — | — |
| Volatility | — | Medium volatility | — | — | — |
| Max win | 1,000× | 10,000× | — | 2,000× | 4,800× |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 5x4 | 5x3 |
| Paylines | 30 | 25 | 10 | 30 | 243 |
| Min bet | 1.00 | 0.20 | 0.01 | 0.25 | 0.30 |
| Max bet | 250.00 | 25.00 | 25.00 | 250.00 | 1200.00 |
| Features | |||||
| Progressive | — | — | — | — | ✓ |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | — | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | ✓ | — | — | — | — |
| Bonus game | ✓ | — | — | ✓ | — |
| Respins | ✓ | — | — | — | — |
Every number is shown as a delta against J Mania Diamonds.
Comparing against
J Mania Diamonds
RubyPlay
RTP
—
Max win
1,000×
Score
66
9 Blazing Diamonds
SpinPlay Games
RTP
96.33%
Volatility
Medium volatilityMax win
10,000×▲+9,000
Score
67▲+1
− Free Spins− Multiplier− Bonus Game− Respins
Dracula's Gems
MrSlotty
RTP
97%
Volatility
—Max win
—
Score
70▲+4
− Multiplier− Bonus Game− Respins
Jungle Adventure Bonus
Inbet Games
RTP
—
Volatility
—Max win
2,000×▲+1,000
Score
62▼−4
− Multiplier− Respins
Africa
Royal Slot Gaming
RTP
—
Volatility
—Max win
4,800×▲+3,800
Score
57▼−9
+ Progressive− Multiplier− Bonus Game− Respins
Series
J Mania
| Game | Year | RTP | Volatility | Slot Score |
|---|---|---|---|---|
 J Mania Golden EggsRubyPlay | 2024 | 96.47% | Medium volatility | 74 |
 J Mania Turkey ChefRubyPlay | 2024 | 96.31% | — | 72 |
 J Mania Mayan Cache DiceRubyPlay | 2024 | 96.31% | — | 75 |
 J Mania Loco HabaneroRubyPlay | 2025 | 96.49% | — | 70 |
 J Mania 3 BuffaloRubyPlay | 2025 | 96.33% | — | 74 |
 J Mania Lucky PyggsRubyPlay | 2025 | 96.36% | High volatility | 83 |
 J Mania ManiacLatestRubyPlay | 2025 | 96.43% | — | 76 |
 J Mania Triple JamRubyPlay | — | 96.36% | — | 77 |
 J Mania DiamondsCurrentRubyPlay | — | — | 66 |
- J Mania DiamondsCurrentRubyPlay · —RTP—Score66
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