Diamond Mystery: 20 Imperial Crown Deluxe

  • Min stake: 20p
  • Max stake: £40
  • Max payout: £200,000
  • Jackpot: Yes
  • Paylines: 20
  • Special features: Expanding Wilds, Double or nothing gamble, Diamond Mystery™ Jackpot Feature


The red carpet has been rolled out for the popular Diamond Mystery series with the addition of the online casino game, Diamond Mystery™ – 20 Imperial Crown deluxe!

This five-reel slot comes with 20 win lines and offers players the stunning Jackpot Diamonds Feature with the four-level Diamond Mystery™ Jackpot and the chance to win up to 5,000 times their stake with the Diamond Jackpot!

Play Diamond Mystery: 20 Imperial Crown Deluxe online now or check out our full collection of online slots and games for more great titles you’ll love.  

Bonus features

Jackpot Diamonds Feature

The Jackpot Diamonds Feature uses the four-level Diamond Mystery Jackpot Feature. Each mystery level has specific gems.

Green Gem - 1st level (lowest jackpot value)
Blue Gem - 2nd level
Red Gem - 3rd level
Diamond - 4th and highest level

For information on symbols and base game instructions, please see in-game help menu.

Malfunction voids all plays and pay. RTP = 95.48%