Double Diamond

Double Diamond

Double Diamond is a classic video slot game by IGT, renowned for its retro theme and straightforward gameplay. Originating from land-based casinos in 1989, it has successfully transitioned to online platforms, retaining its charm with a simple yet engaging design.
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Pros & Cons of Double Diamond Slot

Double Diamond is somewhat of a slot icon and despite some issues, there are still plenty of reasons to play the game, including:

  • Thumbs-Up Cherry symbols always pay out.
  • Thumbs-Up Wild symbols with win multipliers.
  • Thumbs-Up Wins of up to 1,000x your stake.
  • Thumbs-Up Iconic theme.
  • Thumbs-Down No free spins bonus.
  • Thumbs-Down Low RTP setting.

Double Diamond Slot Overview

It doesn’t get more classic than IGT’s Double Diamond in the world of video slots. Originally launched as a slot machine in land-based casinos back in 1989, the game was an absolute hit, ushering in an era of themed slots that made it incredibly popular. It eventually made the transition to online casinos and managed to retain all of its’ original glory.

But how does Double Diamond hold up today? Well in terms of graphics, I still find the visuals pretty fascinating. It captures that retro slot theme perfectly, because well – it is one! Sure, you’re not getting flashy, high-quality graphics here, but there’s something about the colour tone and palette that just works for me.

So, what does the game have to offer beyond mere looks? Read on below as I explore all that Double Diamond has to offer and decide if this glorious slot still deserves a place in the gambling world’s heart.

⚡ RTP 95.44%
🎲 Volatility High
💰 Paylines 1
🔼 Maximum Bet 5
🔻 Minimum Bet 0.20
⭐ Bonus Features Wilds, Win Multiplier

double diamond slot

Double Diamond Slot Game Free Demo

Although Double Diamond is a simple enough game to play, I still suggest trying out the free demo first. This lets you get a better understanding of the paytable and allows you to experience the hit rate of wins and special symbols. You can then have a better idea of the sort of ideal bet levels you can choose to go with your gambling budget.

Pro Tips:

Look, there really isn’t much to playing Double Diamond. But a quick look at the game’s math model will show you that volatility is cranked up to a max setting, while RTP sits at a somewhat disappointingly low 95.44%. This means wins can be quite rare, even if the higher-paying symbols promise to be worth the wait.

So, my best suggestion is to set a low bet level, something that you can afford for a long while, until high-paying symbols and wilds start doing their thing, hopefully rewarding you with the slot’s best prizes.

Double Diamond Slot Bonus Features

When I said that Double Diamond is a retro slot, I meant it. This is just a stripped-back game with retro graphics and minimal features. This is a proper throwback to the days of basic slot machines, where you only had one payline and practically no special features.

Well, that’s only half-true. There are a couple of mechanics to help boost your wins and I’ll get into them below. But first, I’ll give you a quick rundown of all the symbols that await you, as well as their respective payouts.

As expected, the symbols are all classic slot machine icons, including bars, cherries and lucky number sevens. Given the fact that there is just one payline, all of these symbols, except the cherry need to land in combos of three to deliver their rewards. The any bar, bar, double bar and triple bar payout 5x, 10, 25x and 40x your stake respectively. The lucky number seven sits above them, paying out 80x for a combination.

But like I said, Double Diamond does have a couple of surprises up its sleeve, as you’ll be discovering below.

double diamond symbols


This might just be the slot’s biggest and best ‘special feature’. Wild symbols sit at the very top of the game’s pay table. As per usual, these tokens step in for missing pay symbols that could form a winning combination. But that’s not all.

Having a single wild symbol in a winning combination amplifies that win with a 2x multiplier. Increase that to having two wild symbols in your combo and you have yourself a doubled 4x win multiplier. And yet the biggest prize comes when managing to land a combination filled with three wild symbols. This gives you the highest in-game win of 1,000x your stake.

Cherry Symbols

You’ll need to land three identical symbols on the payline to claim a reward, but the cherry symbol is an exception to the rule. The symbol pays out whenever it lands on the payline, so its presence is always quite welcome.

Landing one, two or three cherry symbols pays out 2x, 5x and 10x your stake, respectively. Now, just to clarify, this isn’t a wild symbol. It doesn’t help form winning paylines and it doesn’t apply a win multiplier to your overall win. Instead, it pays out a win whenever it lands, which gets bigger whenever you land more of its symbols.

Free Spins

In true retro slot machine fashion, there are no free spins to be won here. You’ll have to pay for all your rounds of Double Diamond and won’t be getting any mind-boggling boosts to shake up the core gameplay.

RTP & Volatility of Double Diamond Slot

Don’t let the game’s simplicity fool you. Double Diamond comes with a high level of volatility and an RTP of 95.44%. The volatility means wins are quite rare, even if they can give quite good payouts whenever they land. RTP on the other hand, is below average which isn’t particularly ideal in this case. It means wins are spread out over a longer theoretical period so you might need to wait a while longer for big wins to kick in.

The slot is developed by IGT, a brand with an excellent track record that has delivered fantastic games with fair mechanics and math models over the years. So, you can rest assured that Double Diamond is indeed a safe and secure game to play. I recommend playing it at an equally reputable casino, and if you need any help finding one of those, then I suggest you check out the Double Diamond casino list that I’ve included in this review.

Double Diamond Slot on Mobile

IGT has looked after its prized gem with care, even after all these years. Double Diamond has been given the mobile treatment and can be enjoyed on both Android and iOS systems. The game adapts perfectly to mobile devices with intuitive touchscreen controls that work in both landscape and portrait orientations. The mobile version has the same iconic graphics, features and payouts that the desktop version offers, so you have a streamlined experience across all platforms.


IGT’s Double Diamond is one of those incredible online slots that served as milestones in the genre’s history. It wowed players when it was first released as a slot machine and made a brilliant jump onto the online and mobile gambling spaces too. It is a fantastic achievement and I for one am glad that the game still enjoys so much popularity and support.

I’ll start by saying that if I ever had to recommend a video slot that perfectly captures the feel of a superb slot machine, then Double Diamond would have to be it. It’s as basic as they come with a single payline and incredibly minimal features that very subtly help push you towards bigger and better wins. You can also land big prizes thanks to the 1,000x maximum win, although these are held back by a limited maximum bet level. IGT has even added an autoplay feature which makes longer play sessions immensely easier to enjoy.

Of course, nostalgia and admiration aside, Double Diamond has certainly aged. It’s a product of its time of course, and while some might appreciate it for what it is – others who compare it to contemporary releases might be quite disappointed. There’s a lack of special features here, so unless you’re happy with the core mechanic, you’ll get bored with the gameplay pretty soon. Win potential can also be a concern for anyone with bigger gambling budgets since the game sadly caps at a maximum bet of £5.

As with most of these older retro slots, Double Diamond is still an absolute gem for the niche of players who appreciate its history. But if you’re looking for a slot that lives up to the standards set by its contemporary counterparts, then I’m afraid this diamond won’t live up to your expectations.


I’m ready to return to the world of contemporary video slots, but if you have any questions about Double Diamond and its features, then be sure to drop me a message using the contact form below. I’ll get back to you with an answer as soon as possible.

You can also sift through these frequently asked questions, which can give you even more information on the game and its mechanics.

Double Diamond sticks to a single payline, just like it did back when it was a slot machine in land-based casinos.

The wild symbol steps in for missing symbols on the payline. It also awards win multipliers of 2x and 4x when it has one or two symbols in the combination, respectively. Landing three wild symbols awards you a 1,000x your bet jackpot.

The cherry symbol pays out whenever it lands. One, two or three cherry symbols award 2x, 5x and 10x your stake, respectively.

The maximum win you can land from Double Diamond is 1,000x your stake which can be obtained with three wild symbols.

Double Diamond doesn’t have a free spins bonus or any kind of bonus mode.

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Leanna Madden is an expert in online slots, specializing in analyzing game providers and evaluating the quality and variety of slot games. With her extensive knowledge, she guides players to the best slot options, including high RTP slots and those with exciting bonus features. Leanna's insights help players make informed decisions and enjoy rewarding slot experiences at online casinos.

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