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We evaluate slot machines based on multiple criteria, from which we make our final verdict.
Design and theme
96 %
Features and playability
93 %
RTP and volatility
95.78 %
Slot machine details and review Happy Diamonds
If youβre looking for an online slot that combines the simplicity of classic slots with a touch of luxury and modern graphics, Happy Diamonds from the well-known Czech developer Kajot. might catch your eye. This slot takes you into a world where sparkling gems like diamonds and traditional symbols come together with the chance of attractive wins. Happy Diamonds is a classic 4-reel slot with 3 rows and 10 paylines, which means youβve got a chance to win on almost every spin from nearly any position on the reels.
Every slot machine must be developed by a company that invented, designed and put it into operation. Many players eventually find that they only enjoy playing on machines from specific software provider, so they narrow down their selection by preferred brand.
A slot machine with low to medium volatility.Wins are fairly frequent and sometimes even a higher win. The game has a more balanced course without major fluctuations, suitable for players who want more frequent wins but also the chance to win more. More about volatility here.
Slot theme and symbols
As soon as you load the game, youβre greeted by an elegant, easy-to-navigate interface that combines a dark background with brightly glowing symbols and a diamonds theme. Naturally, diamonds take centre stage β green, purple and yellow β and theyβre the real stars of the slot. Alongside them, youβll also find bonus and special symbols on the reels. The visuals are kept minimalist, yet they still feel modern and fresh. Everything is crisp, the animations are smooth, and the colour contrasts make it comfortable to look at even during longer sessions. The sound design definitely wonβt get on your nerves β a very subtle audio track plays only when the reels spin, enhancing the experience without distracting you. The controls are very intuitive. You can set your stake using a simple control panel, which streamlines the whole process. As the name suggests, diamonds play the main role here. Alongside the diamonds, youβll also find golden stars on the reels, which act as WILD symbols β they substitute for other symbols and increase your chances of landing a winning combination. Youβll also find Scatter symbols, which bring plenty of fun. The slot Happy Diamonds isnβt one of those games packed with complicated bonus rounds or dozens of special features. Even so, you can still look forward to Free Spins! The Happy Diamonds slot by Kajot has an RTP (Return to Player) of around 96%, which is a typical figure for similar types of online slots. In terms of volatility, weβd describe Happy Diamonds as medium volatility β meaning wins land at a reasonable frequency, with the occasional bigger hit too.
Happy Diamonds theme and symbols
Red seven
Dark blue seven
White seven
Heart
Yellow gem
Purple gem
Green gem
Special Symbols and Slot Features
3D
NO
Autoplay
YES
Free Spins
YES
Gamble Feature
NO
Locking Symbols
NO
Wild Symbol
YES
Win Multiplier
YES
Other features
Bonus Game
Bonus Scatter
Other Features
Progressive Jackpot
Scatter Symbol
Scatter symbol
The Bonus symbol can trigger a bonus game with Free Spins! If you land enough symbols, youβll get up to 15 bonus spins (or up to 30 if you land 4 Scatter symbols). Scatter symbols are evaluated only after the symbol cascade has finished. The symbol behaviour during Free Spins is exactly the same.
Symbol cascade
If you hit a win during a regular spin, all symbols on the winning payline explode. The remaining symbols drop to the bottom of the grid and new symbols fall into place. The cascade continues for as long as you keep landing wins. It only ends once no winning combination lands.
WILD symbol
With Happy Diamonds, youβll be happy soon enough too. It substitutes for any winning symbols, except Scatter symbols! When it does, your win is always doubled. The WILD symbol is also a winning symbol in its own right, so if you spin three or more, you can look forward to WILD wins.
Prize table
Symbol
Multiplier
3x in payline
4x in payline
WILD symbol
75x
500x
Red seven
25x
100x
Dark blue seven
10x
25x
White seven
3x
10x
Heart
1,5x
3x
Yellow gem
1,5x
3x
Purple gem
1x
2x
Green gem
1x
2x
Our rating of the game
Happy Diamonds
Happy Diamonds is a slot that will charm you with its simplicity, pleasant graphics, and easy controls. Even though it doesnβt offer complex bonus modes, it can pull you in and entertain you β especially if youβve got a soft spot for retro style in a modern look. Itβs great for a quick, light session as well as longer play, where youβll appreciate its steady payout model and solid RTP. So, do you dare to spin the reels and try your luck among the sparkling diamonds?
80%
Editor's rating
Design and theme
67 %
67 %
Features and playability
78 %
78 %
RTP and volatility
96 %
96 %
How do we rate slot machines?
We evaluate slot machines based on multiple criteria, from which we make our final verdict.
You donβt need to learn any complicated rules or bonus mechanics
Just spin the reels and watch the paylines
Ideal for beginners as well as players who just want to relax
The modern, clean design with sparkling diamonds on a dark background looks elegant and doesnβt feel distracting even during longer sessions
The WILD symbol helps complete winning combinations and brings the chance of bigger wins
The game runs smoothly on different devices
Wins are neither too rare nor too frequent, which makes the game balanced and fun for longer play
The slot offers a standard return to player comparable to other slots in this category
Cons
If you enjoy slots with elaborate bonus rounds, free spins, multipliers, or for example expanding WILD symbols, Happy Diamonds will disappoint you in that respect
Because it lacks greater variety in features and effects, the game may start to feel repetitive after a while
The RTP isnβt above average β 96% is standard, but there are slots with a higher return to player
No volatility settings or betting levels beyond the basic options
The game doesnβt offer the option to tailor your risk style
The number of paylines is too low and you canβt set or unlock a higher number
The gamble feature is missing, which would allow the player to try to double their win
Manufacturer Kajot
The Kajot brand is one of the most famous names in the gambling world. It has certainly earned the attention of its fans deservedly with all that it has successfully accomplished in this industry. It is a company from the Czech Republic, Czech players know its slots from online casinos and brick-and-mortar gambling halls.
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Software provider
Game typeSlot
Reels
Winning paylines10 paylines
