Diamond Diamond Diamond Slot by IGT

Five paylines on a three-reel grid is unusual enough. Most classic-format slots stick to one, three, maybe nine. Diamond Diamond Diamond uses five lines that cut diagonals and V-shapes across the grid, so matching three symbols doesn't always mean a straight horizontal row. The paytable runs through fruit symbols - cherries, lemons, oranges, watermelons, plums - into stars, red sevens, BARs, and finally the diamond at 500x per line.

Everything in the base game builds toward one symbol. A diamond landing on any active win line pays 1x your total bet immediately and opens 10 Diamond Spins. During those spins, wins accumulate into a running total displayed above the reels. Here is where the single interesting wrinkle lives: if a diamond appears anywhere on the middle reel during Diamond Spins, your entire accumulated total doubles on the spot. Not the next win - the whole running sum. Hit it early with a small pot and it barely matters. Hit it on spin 9 after stacking up BAR and seven wins, and the final number looks completely different.

The catch is that Diamond Spins can't retrigger. Ten spins, one shot. And that doubling only fires from reel 2 specifically - reels 1 and 3 diamonds during the bonus just pay their normal line value. The game runs on the iSoftBet platform with a metallic blue cabinet frame lined with tiny bulbs, purple light rays fanning out behind the reels. Symbols have that polished 3D render look - glossy fruit with visible light reflections, a faceted diamond that catches the neon backdrop.

No buy bonus, no ante bet, no gamble feature. The bet tops out at 10 credits and the minimum sits at 5 cents. It's a short-session classic reel game where the only question is whether a diamond hits the center position at the right moment.