Cool Diamonds II Slot Review
Cool Diamonds II is a classic Amatic gem slot with 5 reels, 10 paylines, wilds, scatters, a jackpot feature, and a commonly listed 96% RTP.
Built for straightforward spins, Cool Diamonds II keeps things simple with low volatility, a gamble option, and a max win of 2,500× — plus symbol replacement that can chain wins when the reels cooperate.
Key facts at a glance
| Provider | Amatic |
| Release date | January 25, 2017 |
| Game type | Video slot |
| RTP | 96% |
| Volatility | Low |
| Max win | 2,500× bet |
| Reels / rows | 5 / 3 |
| Paylines | 10 |
| Min bet | €1 |
| Max bet | €450 |
| Theme | Diamonds, jewels, gold |
| Bonus buy | Not available |
Cool Diamonds II is known to appear with different configurations (for example RTP versions and stake limits). Always confirm the exact RTP, bet range, and jackpot rules in the in-game info screen before you play for real money.
How Cool Diamonds II plays
This is a traditional 5×3 slot with 10 fixed paylines. You set your stake and spin, aiming to land matching symbols across active lines. The visual style is “classic gems”: diamonds, rings, gold bars, and treasure-themed icons designed for quick readability.
Core features
- Wilds substitute for other symbols to help complete paylines.
- Stacked wilds can cover multiple positions, increasing the chance of a line win.
- Scatters activate the bonus (exact trigger/award depends on the version).
- Bonus symbols add extra win potential and may interact with the jackpot feature.
- Jackpot feature (some casinos list it as progressive; always verify how it’s funded and triggered in your version).
- Winning symbol replacement: after certain wins, the winning symbols can be replaced, allowing follow-up wins in the same spin sequence (if enabled in your build).
- Gamble option after wins, letting you try to increase a payout (higher risk, higher variance).
Who this slot suits
- Players who like classic paylines and simple, fast sessions.
- Anyone looking for a low-volatility gem slot with steadier pacing.
- Fans of gamble features who enjoy “collect or risk it” decisions after a hit.
- Players who prefer a jackpot element without complex bonus mechanics.
The base game is typically low volatility, but using the gamble feature can make results swingy. Set a firm session budget and avoid chasing losses. Learn more at Responsible Gambling.
Bonus structure and payout profile
Cool Diamonds II focuses on classic value: line wins boosted by wilds, occasional stacked wild moments, and a bonus layer driven by scatters and bonus symbols. If your version includes winning-symbol replacement, you’ll sometimes see chained wins when the reels keep refilling in your favor.
The ceiling is a solid 2,500×, but the “feel” is usually about frequent smaller returns rather than long stretches of nothing — especially compared to high-volatility modern slots.
Practical tips before you spin
- Open the paytable first and confirm RTP and jackpot rules for your casino’s version.
- If you use the gamble feature, decide your limit in advance (for example, only on small wins).
- Keep stakes consistent — low-volatility games reward steady play more than aggressive bet jumps.
- If symbol replacement is present, watch for spins where stacked wilds appear; those sequences tend to be the best “chain win” opportunities.
Two similar slots to compare
| Slot | Why it’s similar | Best for |
|---|---|---|
| Cool Diamonds | Same “classic gems” style with straightforward paylines and familiar Amatic pacing. | Players who want the simplest version of the formula. |
| Hot Diamonds | Another gem-forward slot that leans on clean visuals and traditional mechanics. | Anyone comparing classic diamond slots for steadier sessions. |
FAQ
The commonly listed RTP is 96%, but RTP can vary by casino configuration. Always confirm the RTP shown in the in-game paytable for the version you’re playing.
It’s commonly categorized as low volatility, meaning you’ll usually see steadier, smaller wins rather than rare massive spikes. Using the gamble feature can increase session variance.
Yes, the game is listed with a jackpot feature on multiple directories, and some casinos may offer it as a progressive jackpot. Check your casino’s in-game info to see how the jackpot is triggered and whether it’s fixed or progressive.
The maximum win is 2,500× your bet. The biggest hits typically come from strong wild alignment and bonus/jackpot interactions (depending on the version).
Many versions include an optional gamble feature after a win. It can increase payouts but also risks losing the win, so it’s best used sparingly and with a preset limit.





