Double Diamond Deluxe Slot Review
Purple filigree curls around the frame, a faceted diamond glitters above the reels, and everything glows in lilac and neon blue. Double Diamond Deluxe is a three-reel throwback from IGT, built to look like the polished cabinet slot your grandparents would have fed coins into – and it’s all the better dressed for it.
The claim worth arguing: this is a classic format doing quietly clever things. It runs on a 3×3 grid with betting fixed at nine paylines, and its two tricks, nudging diamonds and a multiplying wild, are older ideas executed with real care. IGT fans will know the lineage from Cleopatra and Da Vinci Diamonds, though Triple Diamond Super Pots is the closest cousin on the shelf.
No RTP or volatility figure is given for this one, so the reels have to speak for themselves. They say: keep it simple, then multiply it.
Nine Lines Across Three Reels
Three reels, three rows, nine fixed paylines. Betting is fixed at those nine lines, so there’s no line selection to fiddle with: you choose a total bet from the coin stacks menu, confirm, and spin. It’s a one-decision game, which suits the format.
Changing the bet is equally simple. The plus and minus buttons in the bet panel step the total up or down, or you can pick a total directly from the bet settings menu and confirm with the checkmark. Stakes are shown as bare totals, and the coin value sits alongside them on the same panel.
The Double Diamond is wild and substitutes for every other symbol except the three diamond variants themselves. Any win built on a wild must also contain at least one non-diamond symbol, so three wilds alone on a payline pay as the Grand Prize rather than as a substituted line.
The paytable is compact, and every value below is a multiple of your total bet:
- Three 7s – 8.8889x
- Three mixed BARs – 4.4444x
- Three single BARs – 2.7778x
- Three double BARs – 1.1111x
- Two cherries – 1.1111x
- One cherry – 0.2222x
- Any two BARs – 0.5556x
Line wins are multiplied by coin value, only the highest winner pays on each line, and wins on different lines add together. Wins display in currency as you play. In some jurisdictions a cap on any single transaction can also apply regardless of bet size.
The Grand Prize Ladder
Three Double Diamond wilds on a payline pay one of two Grand Prizes, and which one depends entirely on where they land. That’s the ladder’s whole hook.
On lines one to eight, three wilds pay Grand Prize 2: 800 coins, which comes to 80.00 at the example 0.90 bet. Land them on the ninth line and you collect Grand Prize 1 at 4,000 coins, or 400.00 at the same bet – five times the other prize for the same three symbols. One payline out of nine carries the real money, and it’s the one you’ll find yourself watching.
The Nudge Feature
Two special symbols drive the nudges, and they’re refreshingly literal. The triggers are worth spelling out:
- UP DIAMOND in a bottom or middle active position on a reel nudges up one position at a time until it reaches the top active spot
- DOWN DIAMOND in a top or middle active position on a reel nudges down one position at a time until it reaches the bottom active spot
- Line wins are evaluated before the nudging begins, and again after each nudge completes
If more than one reel holds a nudging diamond, they all move simultaneously rather than taking turns. That matters more than it sounds: a single spin can pay out several times as diamonds shuffle into place and new combinations form on the lines. It’s a small mechanic that turns a static three-reel stop into something with a bit of drama in it.
The Wild Multiplier
The second trick belongs to the Double Diamond wild itself. Every Double Diamond that matches in a line win doubles the pay for that win, and more than one can stack: two wilds in a single win quadruple it, since the multipliers multiply up to a 4x cap.
Against a paytable where the top ordinary symbol pays 8.8889x, that multiplier is the engine of every decent result. The base values look tiny until the diamonds show up, which is the whole design. One rule keeps it honest: a win built on symbol matching must contain at least one symbol other than Double Diamond, so the multiplier can’t run away with itself on wilds alone.
Auto Spin
Auto Spin plays the game automatically for a chosen number of spins at the current total bet, where the jurisdiction allows it. The settings worth knowing about:
- Number of Auto Spins – stepped up or down with the plus and minus buttons
- Loss Limit – stops the run when total losses reach the value you set
- Stop if a Single Win Reaches – stops the run on any win of the value you set
A run also stops if a bonus triggers, if the balance runs short, or if you press the stop button at any point. It’s ordinary stuff, but the loss limit is a sensible habit on a game where the pays run small and the diamonds run rarer.
Our Honest Verdict
Overall Rating: 6.9/10
This is a game you choose for one reason: the little jolt when the diamonds start nudging into place on a spin that had already stopped. Underneath the lilac glow it’s a genuinely quick, tidy machine. Set a bet, spin, watch nine lines resolve in seconds.
Its strength is that two small mechanics carry the whole thing without ever feeling thin. Its weakness is the ladder: the ordinary pays are small enough that one payline in nine carries almost all the real money, and long stretches can pass without a result worth the name.
It suits players who like old-cabinet slots with a bit of theatre in the reel stops, and nobody who wants a bonus round. If three reels and faceted stones are your idea of a good evening, this one will hold its sparkle.
Double Diamond Deluxe FAQs
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How do the UP DIAMOND and DOWN DIAMOND symbols work?
UP DIAMOND nudges upward one position at a time from a bottom or middle reel position until it reaches the top, and DOWN DIAMOND nudges downward from a top or middle position until it reaches the bottom. If several reels hold nudging symbols, they all nudge simultaneously, and wins are evaluated after each nudge completes. -
What does the Double Diamond wild multiplier do?
Each Double Diamond that matches in a line win doubles the pay for that win. More than one can match in the same win, with multipliers multiplying up to a 4x cap. The win must contain at least one symbol other than Double Diamond. -
Why are there two Grand Prizes in Double Diamond Deluxe?
Three Double Diamond wilds on lines one to eight pay Grand Prize 2, worth 800 coins, while the same combination on the ninth line pays Grand Prize 1 at 4,000 coins – five times as much. The payline you land them on decides which prize you collect. -
What symbols does the Double Diamond wild substitute for?
Double Diamond is wild and substitutes for all other symbols except DOUBLE DIAMOND, UP DIAMOND and DOWN DIAMOND. Wins that use it as a symbol match must contain at least one non-diamond symbol. -
Can a single spin pay out more than once?
Yes. When the Nudge Feature triggers, wins are evaluated after each nudge completes, so a spin can produce several payouts as the UP DIAMOND and DOWN DIAMOND symbols move into their final positions. -
How many paylines does Double Diamond Deluxe have?
Betting is fixed at nine paylines, so every spin covers all nine lines. There’s no option to select fewer. -
What is the grid size of Double Diamond Deluxe?
It’s a classic 3×3 setup: three reels and three rows, with nine paylines crossing them. -
Who makes Double Diamond Deluxe?
Double Diamond Deluxe is made by IGT, one of the longest-established names in slot design and the studio behind classics like Cleopatra and Da Vinci Diamonds.


