Diamond Queen Slots Review - Free Games Bonus, Wild Reels & 20 Paylines slot review theme illustration, AI-generated and not an in-game screenshot.
AI-generated thematic illustration; this is not a verified screenshot of the game.
Slot Reviews

Diamond Queen Slots Review - Free Games Bonus, Wild Reels & 20 Paylines

Diamond Queen is a jewel-themed IGT slot that has been a fixture in high-limit rooms for years. It uses a 5-reel, 20-payline layout with scatter pays and a free games bonus where the middle reels turn wild. This review covers what the game does, how the bonus works, and what Irish players should know before choosing a machine.

Diamond Queen Slot - Editor's Comment

Diamond Queen is not a new game, and it does not pretend to be. It is a straightforward IGT slot with a jewel theme, a 5-reel, 20-payline setup and a free games bonus that can turn the middle of the screen wild. The appeal is not in flashy animations or a complex feature set. It is in the structure: scatter pays, a volatile bonus and a layout that high-limit players have returned to for years.

Diamond Queen is often found in high-denomination rooms, and bet limits vary by cabinet and venue. Some versions may have higher minimum bets than typical video slots, so check the machine or game screen before you play. Lower-denomination versions may exist, but availability depends on the specific cabinet or operator.

The free games bonus is triggered by landing three or more Diamond Queen scatter symbols. During the bonus, wild reels expand across the middle reels in a fixed sequence. The bonus can produce large wins if high-paying symbols align, but it is not guaranteed to trigger in any given session.

Diamond Queen is a straightforward, high-volatility slot with a simple structure. It is best approached with a clear budget and an understanding that the bonus may not appear in a short session.

What We Liked

  • Simple 5-reel, 20-payline layout that is easy to follow.
  • Scatter pays on the Diamond Queen symbol, with three or more triggering the free games bonus.
  • Free games bonus with expanding wild reels across the middle.
  • Available in multiple denominations depending on the cabinet or operator.
  • No complicated sub-systems or confusing mechanics.

What is the Diamond Queen Slot?

Diamond Queen is a video slot from IGT. It is a 5-reel, 20-payline game with a jewel theme and a free games bonus. The game has been tagged by URComped members at casinos including The Cosmopolitan of Las Vegas and Yaamava' Resort & Casino, which shows it has a presence in land-based venues. It is not a Megaways game, and it does not use cluster pays or expanding reels outside the bonus.

The core game is built around line wins and scatter pays. The Diamond Queen symbol acts as a scatter and triggers the free games bonus when three or more appear. During the bonus, reels two, three and four can become completely wild, depending on which spin you are on.

IGT is a major supplier of land-based and online casino games. The company's portfolio includes classic titles such as Cleopatra, Da Vinci Diamonds and Triple Diamond. Diamond Queen sits alongside those games as a recognisable IGT cabinet title. You can see more IGT games on our slot providers page.

Diamond Queen Slot Machine At A Glance

The table below summarises the verified specifications for Diamond Queen. Where a detail is not confirmed by the available sources, it is omitted rather than guessed.

AspectDetail
ProviderIGT
Reels5
Paylines20
RTP96.08% (as published by VegasSlotsOnline)
VolatilityHigh (as published by VegasSlotsOnline)
Bonus featureFree games with wild reels
Scatter paysYes, on the Diamond Queen symbol
Minimum betVaries by machine; check the specific cabinet or game screen for minimum bet limits.
Maximum betVaries by machine; check the specific cabinet or game screen for maximum bet limits.

The RTP figure comes from VegasSlotsOnline's game page. RTP is a long-run theoretical average, not a prediction for any single session. A game with a 96.08% RTP does not return 96.08% of your money in an hour of play. It is a calculation based on millions of spins. You can read more about how RTP works in our RTP explained guide.

Bet limits are not fixed across all versions. Different cabinets and operators may have different limits. Always check the machine or game screen before you play.

Diamond Queen Slot RTP, Payout and Volatility

Diamond Queen has a published RTP of 96.08% and is described as high volatility on VegasSlotsOnline. That combination means the game is designed to produce relatively infrequent but potentially larger wins. The bonus is difficult to trigger, and the base game can go through long dry spells. Players who prefer frequent small wins may find the pace frustrating.

The payout structure is based on line wins and scatter pays. The Diamond Queen symbol is the scatter. Three or more scatters trigger the free games bonus. The bonus can produce large wins if high-paying symbols align, but it is not guaranteed to trigger in any given session.

There is no guaranteed payout and no strategy that can change the odds. The RTP is a theoretical average over a very large number of spins. It does not mean the game is due a win, and it does not mean a session will return that percentage. Treat any session budget as money you are prepared to spend on entertainment, not as an investment.

How to Play Diamond Queen

Diamond Queen is a simple game to operate. The steps below cover the basics for a land-based cabinet or an online version where available.

  1. Check the denomination and minimum bet. On some cabinets the minimum may be higher than typical video slots, so make sure you are comfortable with the stake before you start.
  2. Choose your bet level. The game uses 20 paylines, and the bet is typically calculated as credits per line multiplied by the number of lines. Some cabinets allow multi-denomination adjustments.
  3. Press spin. The reels spin and line wins are paid from left to right on adjacent reels, starting from reel one.
  4. Watch for the Diamond Queen scatter. Two scatters pay a scatter prize. Three scatters trigger the free games bonus.
  5. During the free games bonus, the wild reels expand across the middle. The first spin holds reel one wild, the second spin holds reels two and three wild, and the third spin holds the whole middle section wild.
  6. Check whether the bonus can be re-triggered. The free games bonus may have re-trigger potential, but this depends on the specific version and operator.

There is no autoplay on the version listed by VegasSlotsOnline. If you prefer autoplay, you may need to check the specific cabinet or online version. Always confirm the bet before spinning, as it is easy to lose track of the stake on multi-denomination machines.

Diamond Queen Gameplay, Graphics & Sound

Diamond Queen has a classic slot aesthetic. The reels are filled with jewels, playing card symbols and a regal female character. The Diamond Queen symbol is the most important icon, acting as both a scatter and a high-value line symbol. The graphics are not modern by current standards, but they are clear and functional. The game was designed for land-based cabinets, and the visual style reflects that era.

Sound is similarly traditional. There are no elaborate animations or cinematic sequences. The focus is on the reels and the bonus trigger. Players who grew up with IGT cabinets will recognise the feel. Those used to modern video slots with elaborate intros and mini-games may find it plain.

The gameplay is straightforward. There are no cascading reels, no expanding symbols in the base game and no complex multiplier systems. The only significant deviation from the base game is the free games bonus. That simplicity is part of the appeal for players who want a direct experience without layered mechanics.

Diamond Queen Slot Features

Diamond Queen does not have a long list of features. The main feature is the free games bonus, supported by scatter pays and wild symbols. There are no progressive jackpots, no pick-me bonuses and no gamble feature on the version described by the available sources.

The wild symbol is the Diamond Queen herself. She can substitute for other symbols to complete line wins. In the base game, she also acts as a scatter, which means she can pay for two or more appearances regardless of position. That dual role is unusual and adds a small extra layer of interest to the base game.

The free games bonus is the centrepiece. It is a three-spin sequence with expanding wilds. The first spin holds reel one wild. The second spin holds reels two and three wild. The third spin holds the whole middle section wild. If the bonus re-triggers, the sequence can continue. The bonus can produce large wins if high-paying symbols align.

Bonus Features: Wilds, Multipliers, and Free Spins

Wild Reels in the Free Games Bonus

The free games bonus is the only place where wild reels appear. On the first free spin, reel one is held wild. On the second free spin, reels two and three are held wild. On the third free spin, reels two, three and four are held wild. This progression is fixed and does not change between triggers. The wilds substitute for all other symbols except the scatter, where applicable.

Scatter Pays

The Diamond Queen symbol is a scatter. Three or more scatters trigger the free games bonus. The scatter pay is a useful consolation when the bonus does not trigger.

Free Spins

The free games bonus awards three free spins. The bonus can be re-triggered, but the video notes that re-triggers are difficult. There are no multipliers attached to the free spins on the version described. The value comes from the expanding wild reels and the potential for high-paying symbol combinations.

No Multipliers

There is no multiplier feature in Diamond Queen. The game does not have a multiplier wild or a multiplier trail. Any large wins come from line hits with wild reels rather than from a multiplier system.

Other Diamond Queen Features

There are no other features beyond the free games bonus, scatter pays and wild symbols. The game does not have a gamble feature, a pick-me bonus or a progressive jackpot. It is a simple slot with a single bonus round. That is not a criticism. Many players prefer a game that does not overwhelm them with options.

If you are looking for a game with more features, you may want to explore other IGT titles or modern video slots. Our video slots section covers games with more complex mechanics.

Where to Play Diamond Queen

Diamond Queen is a land-based slot from IGT. It has been tagged at casinos including The Cosmopolitan of Las Vegas and Yaamava' Resort & Casino, according to URComped. Availability in Ireland depends on the individual casino or online operator. There is no blanket availability across all Irish casinos or online platforms.

If you want to play online, check whether the operator carries IGT games and whether Diamond Queen is included in its portfolio. Not all online casinos offer the full IGT catalogue. You can browse our Irish casino reviews to see which operators list IGT titles, but always confirm the specific game on the operator's site before signing up.

For land-based play in Ireland, contact the casino directly to ask whether Diamond Queen is available. Game availability can change, and a cabinet may be moved or removed without notice.

Other Slot Games You Might Enjoy

If you like the straightforward style of Diamond Queen, you may also enjoy other IGT classics. Cleopatra is another 5-reel, 20-payline game with a free spins bonus and a similar high-volatility feel. Da Vinci Diamonds uses a 5-reel, 20-payline layout with tumbling reels and a free games bonus. Coyote Moon is another IGT title with a free spins bonus and a nature theme.

For a broader look at classic slots, see our classic slots section. If you prefer games with more modern features, our video slots section covers a wide range of titles.

Diamond Queen Slot FAQs

Who makes the Diamond Queen slot?

Diamond Queen is made by IGT. The game is listed on VegasSlotsOnline under the IGT provider page and on URComped as an IGT slot machine.

What is the RTP of Diamond Queen?

VegasSlotsOnline lists the RTP as 96.08%. RTP is a long-run theoretical average, not a guarantee for any session. It does not mean the game will return that percentage in a short playing period.

How many paylines does Diamond Queen have?

Diamond Queen has 20 paylines across 5 reels. The game uses a standard left-to-right line win system, with scatter pays on the Diamond Queen symbol.

What special features does Diamond Queen have?

The main feature is a free games bonus with expanding wild reels. The first free spin holds reel one wild, the second holds reels two and three wild, and the third holds the whole middle section wild. The Diamond Queen symbol also acts as a scatter and can pay for two or more appearances.

Can I play Diamond Queen on mobile?

The available sources describe Diamond Queen as a land-based slot machine. There is no confirmed mobile version in the sources we have. If an online operator offers the game, mobile compatibility would depend on that operator's platform.

What is the maximum payout on Diamond Queen?

The available sources do not state a maximum payout figure for Diamond Queen. We have not included a number because it is not verified. The bonus can be lucrative, but no fixed maximum win is published in the sources we used.

Where can I play Diamond Queen?

Diamond Queen has been tagged at land-based casinos including The Cosmopolitan of Las Vegas and Yaamava' Resort & Casino. Availability in Ireland depends on the individual casino or online operator. Check directly with the venue or operator before you go.

Sources and Game Information

Information checked against the linked material on October 4, 2026. Game versions, operator terms and regional access can change; check the rules and terms shown before you play.