£10 free - No deposit required

99x wagering requirement. New players only. £5 max stake with bonus. £50 max withdrawal for non-depositors. 7 day expiry. Not all games contribute. Players must enter a valid debit/credit card to claim this offer. 18+ Begambleaware.org T&C's Apply

100% First Deposit Offer

New players only. Deposit £20, £50, £100 or £200 as a single first deposit and wager 30x for a matched cash reward. 7 day expiry. Only cash stakes on slots will qualify. 18+ BeGambleAware.org T&C's Apply

Diamond Jackpots

Play Diamond Jackpots at Slot Boss and spin the luxury reels. The diamonds and gem themed online slot game is packed with dazzling bonuses and a huge jackpot prize. The stacked symbols will also help you land more valuable winning combinations.




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Bonus: Jackpot King Progressive

Diamond Jackpots is a 5 reel 10 line online slot game which features a stunning diamond theme. All you have to do is match three or more symbols on a win line to win huge amounts, especially with stacked symbols.


Total Bet
Selecting the total bet button will enable you to either increase or decrease your total bet amount, by selecting from a list of stakes in the total bet option.

After you have decided the amount you wish to bet on each spin, then click the spin button. This will place your bet and start the reels in motion.

You can also use the autoplay feature which automatically start each spin for a predetermined number of spins. Simply press the stop autoplay button to stop during the auto spins.

Jackpot King Promotional Jackpot System

There is a chance to trigger the Jackpot King bonus during any spin Diamond Jackpots, by simply achieving 5 Jackpot King overlay symbols on reels 1 to 5.

The Jackpot Promotional Pot System is available on any stake in Diamond Jackpots. You will be able to move up the win ladder by spinning the reels and accumulating crown symbols. You will enter the Wheel King section of the feature if you collect fifteen or more crown symbols.

After any spin you will choose an icon which will result in one of the following actions:

Spin - this will enable you to spin the reels and any additional crown symbols in view will be added to the win ladder.
Collect - this will result in the feature coming to an end and you will be awarded a bonus win.
Wheel King - this will take you directly to the Wheel King round of the feature. The wheel king feature consists of a tombola style wheel which is made up of both Jackpot King Progressive Pot segments and Big Win Multiplier segments. You will begin by spinning the wheel and you will be awarded whichever segment the wheel lands on.

You are only able to win the Jackpot King Promotional Pot during the wheel king bonus feature and once it is won, it will reset and begin to rise again.

So, the Jackpot King funds work in a certain way, let us explain. So, 0.13% of each stake is set aside to make a reserve pot. When the Jackpot King is won, the Jackpot will rebuild once again with the reserve pot. IPS starts the seed fund, meaning the Jackpot will be funded by the initial seed with an added 0.86% of each stake. A final 0.13% is given to the reserve pot for when the Jackpot is won.