Play Diamond Queen Slot for Free & Review

Diamond Queen is hugely land based slot game which is now available online. It has a mysterious and classy theme as it features diamonds and gems. It has a unique Mystical Diamond Free Spins Bonus feature where reels turn completely wild to give you huge wins.

Where to Play Diamond Queen Slot


up to £60




Virtual Reality

T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly,


up to £150





T&C Apply

First Deposit Only. Min. deposit: £20, max. Bonus £150. Game: Starburst, Spin Value: £0.10. WR of 60x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.30) of the free spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.


up to £200


Free Spins



T&C Apply

18+. New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs Apply

Diamond Queen Slot Review

Diamond Queen is a 5 reel video slot with 20 paylines. Developed by IGT, it has an exuberant and magical feel to it and makes the transition from offline to online as it’s been a very popular game in land based casinos across the US and Europe. It reminds me of Da Vinci Diamonds as you will see diamonds, tiaras and gems. You can play for as little as 20p a spin to £200 a spin.

It has a free spins feature called the Mystical Diamond Free Spins Bonus feature (bit of a mouthful). This is activated by getting 3 Mystical Diamond Bonus symbols on the second, third and fourth reels. You then get 3 free spins. You may be thinking this is low but these aren’t no ordinary free spins.

The 1st free spin will begin with the entire 2nd reel turned completely wild. The 2nd free spin will have the 2nd and 3rd reels turned completely wild whilst the 3rd free spin will see reels 2, 3 and 4 completely wild. This is a great feature in my opinion as the win amounts can be quite substantial if luck is on your side.

If you would like more free spins, you can get up to 20 additional free spins – you will be awarded 1 free spin every time the Extra Spin symbol appears on the first reel. If you trigger a free spin on the 2nd free spin for example, you will get 2 wild reels for the extra free spin.

Diamond Queen is a highly volatile slot (according to IGT themselves) which means that it’s a high variance game. This means that the bonus hit frequency is low. And that means that you won’t trigger the bonus feature very often. When you do, expect a big win. The question is whether you have the bankroll to ride out the dry spells whilst you wait for that monster win.

I’ve played Diamond Queen a fair bit since it launched and you will struggle to win more than 5 times your stake in the free spins feature. Furthermore, I found the game to play out quite slowly meaning that it frustrating the life out of me. Therefore I prefer to play the fast-paced Cleopatra II by IGT or the newer Playtech slots like Iron Man 3 which use the Turbo Mode feature!

Diamond Queen Slot Information

  • Game:
    Diamond Queen
  • Software:
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Total Coins:
  • Coins Range:
    0.01 to 10.00
  • Jackpot:
  • Bonus Round:
  • Free Spins/Multiplier:
    3-23/ NA
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.