Only Diamonds Slot Review

In 1477, Archduke Maximilian of Austria gave Mary of Burgundy a diamond engagement ring 💍, creating a tradition that has bankrupted generations of nervous suitors ever since. So if you’re wondering who to blame, now you know.

Before that historical moment, diamonds 💎 were just shiny rocks that wealthy people hoarded. Post the Austrian engagement, they became the ultimate symbols of commitment and were priced accordingly by people who understood marketing.

The diamond industry spent the next 500 years convincing everyone that these compressed carbon chunks were rare, precious, and essential. They're not actually that rare, but they're controlled. 🤷🏻

But the myth stuck, and now we're all expected to spend three months' salary on a rock because some random guy started a trend in the 1400s. 🤬

Don’t expect a proposal, but let’s play Only Diamonds slot from Gamzix.

Gameplay

The deep purple color oozes luxury, and multiple diamonds have been scattered around the edges of the 3-reel, 3-5-3-row grid. There are no regular symbols in the base game, and symbols only pay during the Bonus Game.

You can see the Jackpots lined up on the left: the Mini pays 10x, the Minor 20x, the Major 50x, and the Grand 500x.

If you’re wondering about the shopping basket in the bottom-left, this is the Buy Bonus.

The game runs on medium volatility, a 96.01% RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate., a 3,500x max multiplier, and a $210,000 max win. All currencies are accepted.

Features

BONUS GAME (HOLD & WIN)

When you hit 3 symbols on the middle row or trigger the Heap of Diamonds feature, the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). Bonus Game is triggered, awarding 3 spins. Landing a new symbol resets your count to 3.

The only symbols in play are Diamonds (values ranging from 1x to 9x), Jackpot symbols, Collect, Upgrade, Mystery, and Mystery Jackpot symbols.

The upper-middle and lower-middle positions are considered special. Only 9x Diamond symbols, Jackpot symbols, Mystery Jackpot, Collect, or Upgrade symbols can land in these positions.

Mystery Symbols

Mystery symbols reveal values from 1x to 9x or award Mini (10x), Minor (20x), or Major (50x) Jackpots. Mystery Jackpot symbols always reveal one of the three Jackpots.

Upgrade Symbol

Another effective symbol is the Upgrade symbol. It increases all Diamond prizes by 1x, upgrades 9x Diamonds and Mystery symbols to Mystery Jackpots, and moves Jackpots to the next tier (Mini to Minor, Minor to Major). The Major Jackpot does not upgrade.

Collect Symbol

The glowing Collect symbol can show up during the base game, but won’t collect anything unless you trigger the Bonus Game. When it lands, it first reveals a Mystery or Mystery Jackpot, before collecting all other values on the reels, including Jackpots.

You need to fill all 11 positions to get your hands on the 500x Grand Jackpot.

HEAP OF DIAMONDS

The other way you can trigger Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). is via the Heaps of Diamonds feature. Any Diamond symbol you land on the middle row in the base game can randomly trigger the Heap of Diamonds feature.

This will automatically add enough Diamond symbols to trigger the Bonus Game.

BUY BONUS

Two options are available when you click on the Buy Bonus:

• Buy Bonus (30x) - Triggers the Bonus Game on your next spin.
• Buy Super Bonus (75x) - Play the Bonus Game with increased chances of landing high-value symbols.

Performance

I didn’t encounter any issues while playing the game.

Max Win

The game accepts bets ranging from $0.10 to $60. To claim the $210,000 max win, you need to land the 3,500x max multiplier on a $60 bet.

Conclusion

Here’s a game that eliminates base game payouts entirely. You're grinding through empty spins until the Bonus Game triggers, then hoping Upgrade and Collect symbols land in the right order.

Timing is everything. Landing an Upgrade early stacks values before the Collect sweeps the grid. Landing Upgrade after the Collect has already fired does nothing.

To even sniff the max multiplier, you’ll basically need the Grand Jackpot (all 11 positions filled) plus stacked Major Jackpots and Upgraded Diamonds collected together. As you can see, it is not an easy task.

Low-risk players should bet small and accept that sessions live or die on 2-3 Bonus Game triggers. Balanced players need to focus on timing… Upgrade before Collect is good, while the reverse order is bad.

High-risk players should spam the Buy Super Bonus for better symbol distribution over the standard Buy Bonus option.

Slot Details

Game Provider: Gamzix
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: N/A
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.: 96.01%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium
Bonus Round: Yes
Progressive: No
Free Rounds: Re-spins
Max Multiplier: 3,500x
Max Win: $210,000
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