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The Double Diamond slot machine, a classic game by IGT, has been a workhorse on the casino floor, especially in the high limit rooms. Between the original and the various sequels and extensions that have come off the game, the format remains a favorite on casino floors today.
The original Double Diamond slot machine is a straightforward game – there’s a single payline on which symbols can line up. Bars, 7s and cherries are the symbols in play – there are no bonuses or features to contend with so all the money is found in the reel pays.

The bars pay mixed, which are helpful in terms of having wins a bit more frequently show up. And then there’s the Double Diamond symbol – if one shows up on a winning line hit, it will pay double, and if two show up, your win will be multiplied by 4.
Getting all three Double Diamond symbols will yield the top pay on the machine, which is 800x your bet.
There aren’t that many symbols, and the pay table is so simple that it would appear on glass in casinos, because all of the pays could be easily displayed on the outside of the machine. This is in comparison to some casino games today where the pay table information can go on for dozens of pages.
One thing about Double Diamond is that if you see it in a 2 credit configuration, often that second credit has payouts that are exactly double, meaning you don’t necessarily have to bet the second credit as the pays are equal.
But many three-credit Double Diamond machines reward the third credit wager with a slightly higher top payout. It won’t have a major impact on the overall payout of the game, but for those looking to be eligible for the maximum payback, it can be something to watch out for.
Watch Brian Christopher Play the Double Diamond Slot Machine
On a recent Brian Christopher Slots Cruise, Brian played Double Diamond in a high-limit level of $75 a spin:
Brian plays a multi-game version that yielded a lovely surprise:
Here Brian does $100 spins, and does well:
Where to Play the Double Diamond Slot Machine Online

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