£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. 18+ Begambleaware.org T&C's Apply

100% First Deposit Bonus

40x wagering requirement on bonus. Max claim £50. £5 max stake with bonus. 30 days expiry. Not all games contribute. 18+ Begambleaware.org T&C's Apply

Gem Blast

Exploding bombs to reveal huge 3x3 symbols, Mystery Wins of up to 77x your stake and Beams firing full columns and rows into identical gemstones are just some of the features to be unlocked in the Gem Blast slot! Oh, and there’s 777x your total stake to be won via landing the Jackpot! Read more about the Gem Blast slot below and how you can unlock these potentially bountiful bonuses!




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Bonus: 777x Jackpot

About the Gem Blast Slot

The Gem Blast slot is played on a 7x7 reel slot and is developed by Cayetano Gaming. This colourful slot boasts a huge gem theme and it’s all about landing the stones for the big wins! For example, you have the chance to blast away 77 gemstones from the reels, and in the process win the Jackpot of 777x your total stake! There’s a mass of other bonuses to play for that are all listed below, check them out!

How to Play the Gem Blast Slot


Select the Gem Blast slot paytable to view information such as the winning lines, symbol values and bonus rounds within the game.

Bet/Stake per Line

You can edit the stake in the Gem Blast slot by selecting the ‘+’ and ‘-’ buttons to increase or decrease the total bet amount.


Select the autoplay feature in the Gem Blast slot to play a predetermined number of spins at a set bet amount.


Select the ‘Spin’ button to set the reels into motion!

Gem Blast Slot Bonuses

777x Jackpot

Whilst spinning the reels within the Gem Blast slot you may get Triple 7's and the 'luck' factor it illudes too and have the chance to blast up to 77 gemstones to win the grand jackpot of 777x your total stake!

Gem Bomb

Explosive wins may come your way whilst playing the Gem Blast slot, with Bomb symbols exploding to create huge 3x3 symbols when they land on the reels! You can even win additional Bonus Bombs, with 3 Bombs on one spin available to explode to potentially reveal some massive wins!

Mystery Wins

Every gemstone win you achieve in the Gem Blast slot may trigger an additional bonus reward from 7x all the way up to 77x your total stake!

The Beam Bonus

Every Beam will convert a row or column of symbols into 7 identical gems, doubling the wins that you achieve as a result! You can even win additional Beams, with up to 2 Beams on the reels at once awarding you with up to 13 identical gemstones and the chance of some mega payouts!

Slot Boss Suggests

If you like the colourful nature and bursting bonuses within Gem Blast, there’s also an online casino classic that may fit the bill! The Starburst slot by NetEnt is a staple in online casinos and here at Slot Boss it is no different. If you’re a fan of the gem theme, we also offer the Gems Gone Wild slot that comes with Random Wilds and Free Spins that can be retriggered!