Cool Diamonds II slots from Amatic Industries

RTP: 97.7%

Experience the sparkle and win big with Cool Diamonds II!

Step into a world of pure luxury with Cool Diamonds II by Amatic. This classic slot machine dazzles with sparkling gemstones and straightforward gameplay, making it a timeless choice for enthusiasts. Its main attraction is a generous Free Spins feature, offering players the chance to accumulate glittering wins. With its high RTP, this casino game promises both elegance and rewarding potential.


Provider: Amatic
Release Date: 2015
RTP: 97.7%
Volatility: Low
Max Win: 3,000x
Theme: Gems, Luxury
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Feature Value
Reels 5
Rows 3
Paylines 10
Min Bet $0.10
Max Bet $100
Max Win 3,000x
Jackpot No
RTP 97.7%
Volatility Low
Hit Frequency N/A

The theme of Cool Diamonds II revolves around opulence and precious gemstones. The design is simple and elegant, reminiscent of a classic slot found in a luxurious casino. The background is a deep, rich blue, allowing the vibrant colors of the gems to pop on the screen.

The graphics are crisp and clear, though not overly complex, staying true to its retro roots. Animations are smooth, with winning symbols sparkling and flashing to celebrate a win. The sound design is minimalistic, featuring traditional slot machine jingles and clicks that enhance the classic casino game feel without being distracting.

  • Regular Symbols: The reels are adorned with a variety of precious stones. Lower-paying symbols include red rubies, green emeralds, and blue sapphires. High-paying symbols are represented by a treasure chest, gold bars, and a diamond ring. The treasure chest is the most valuable regular symbol.
  • Special Symbols:
    • Wild Symbol: A single large diamond acts as the Wild. It can substitute for all other symbols, except the Scatter, to help form winning combinations.
    • Scatter Symbol: A trio of round diamonds serves as the Scatter symbol. Landing three or more of these anywhere on the reels triggers the Free Spins feature.

Playing Cool Diamonds II is straightforward. First, set your desired bet amount using the controls at the bottom of the screen. Once your wager is set, simply press the ‘Spin’ button to start the reels. For those new to this classic slot, a demo mode is widely available to practice without risking real money. This mobile slot is fully optimized for both iOS and Android devices, allowing you to enjoy the sparkle on the go.

Free Spins

The main bonus feature is the Free Spins round. It is triggered by landing three or more Scatter symbols (three diamonds) anywhere on the reels. This awards you with 15 free spins. A significant advantage of this round is that it can be re-triggered by landing another set of three or more Scatters during the feature, prolonging your chances for big wins.

Gamble Feature

For those who enjoy an extra layer of risk, Cool Diamonds II includes a Gamble feature. After any win, you have the option to gamble your prize. You can either guess the color of a face-down card to double your winnings or guess the suit to quadruple them. An incorrect guess will result in losing the gambled amount.


RTP: The Return to Player (RTP) for Cool Diamonds II is an impressive 97.7%. This figure is well above the industry average, suggesting that this high RTP slot offers players a favorable return over an extended period of play.

Volatility: This game has low volatility. This means that players can expect frequent, smaller wins rather than infrequent large payouts. This makes it an excellent choice for casual players or those with a smaller bankroll who prefer longer play sessions.


Cool Diamonds II by Amatic is a shining example of a classic slot done right. While it may not have a plethora of complex bonus features, its high RTP and low volatility make it a very attractive option for many players. The straightforward gameplay, combined with a re-triggerable free spins feature, provides a solid and enjoyable gaming experience. It’s a perfect mobile slot for those who appreciate the timeless allure of gems and the thrill of frequent wins.

Pros Cons
✅ Exceptionally high RTP of 97.7%. ❌ Lacks complex bonus rounds.
✅ Low volatility ensures frequent payouts. ❌ Simple graphics may not appeal to all.
✅ Re-triggerable Free Spins feature. ❌ No progressive jackpot.
✅ Simple and easy-to-understand gameplay.

Suitable for: Casual players, beginners, and fans of high RTP slots.


What is the RTP of Cool Diamonds II?

The RTP of Cool Diamonds II is 97.7%, which is considered very high for an online slot.

Can I play Cool Diamonds II for free?

Yes, a free slot machine demo version of Cool Diamonds II is available on our website, allowing you to play without any registration or deposit.

Does Cool Diamonds II have a free spins feature?

Yes, the game features a Free Spins round that is triggered by landing three or more Scatter symbols, awarding 15 free spins.

What is the maximum win in Cool Diamonds II?

The maximum win in Cool Diamonds II is 3,000 times your stake.

Is Cool Diamonds II mobile-friendly?

Yes, Cool Diamonds II is fully optimized for mobile devices and can be played on both smartphones and tablets.


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