Only Diamonds Slot Review
Gamzix puts players in the dazzling spotlight of their latest release, Only Diamonds. Focusing on a daring 3-5-3 format, Only Diamonds introduces two specialised cells designed to let its most valuable symbols truly shine.
Embracing the timeless aesthetic and familiar icons found in classic, land-based casinos, can this dazzling release capture the same magic players have long associated with Diamonds? Built by the creative minds at Gamzix, the base game lays the groundwork for the Bonus Game, where the rewards shine brighter than ever.
Touched by a medium volatility profile and a 3,500x max win potential, gameplay is driven by Mystery, Jackpot, Collect, & Upgrade symbols that combine to deliver divine payouts…

Base Game & Features
Only Diamonds is a medium (3/5) volatility slot with a 3-5-3 reel configuration, and zero distinguishing pay lines or ways to win. This game has been stripped of traditional paytable symbols. Instead, each spin reveals Mystery, Collect, Upgrade, & Jackpot symbols, which do not payout until the Bonus Game.

Mystery Symbols
Throughout gameplay, Mystery symbols may fill any position of the main reel set. At the end of the Bonus Game or Prize Collection, each Mystery symbol reveals a random Cash Prize of 1x to 9x your bet. Alternatively, Mystery symbols can reveal Jackpot Prizes of Mini (10x), Minor (20x), Major (50x), or Grand (500x).
Collect & Upgrade
Collect symbols (Orange Orbs) can appear in the base game, but the Prize Collection begins when the Bonus Game triggers. When a Collect symbol hits, it will first reveal Mystery symbols, which are collected from left to right & top to bottom.
In addition, the Upgrade symbol can appear in the Base or Bonus Game. Once visible, it will upgrade all Cash Prizes to the next available grade, increasing their values by +x1. A Cash Prize of 9x your bet is automatically upgraded to the first available Jackpot Prize. Lastly, Jackpot Prizes affected are upgraded by the Upgrade symbol.
Heap of Diamonds Feature
Each time a Diamond symbol lands on an active row in the base game, there’s a chance of triggering the Heap of Diamonds feature. Once active, any Mystery symbol, including Jackpots, can be added to the reels to guarantee the Bonus Game is triggered.

Only Diamonds: Bonus Game
Triggering the Bonus Game requires 3 symbols to land on an active row, or the Heap of Diamonds feature to trigger, awarding 3 Respins.
During this mode, only Cash Prizes with a random value between 1x and 9x your bet, Collect, Upgrade, or Mystery Jackpots can appear. When any of the aforementioned symbols land, the Respins Meter resets to 3.
The upper-middle and lower-middle reel positions are specially marked areas on the reels. In addition, the appearance of Jackpot Prizes will award their respective payouts. If all 11 reel positions are filled, the Grand Jackpot Prize of 500x your bet is awarded.

Bonus Buy
Players may purchase any of the following Bonus Buy options:
- Bonus Game: Instantly triggers the Bonus Game for 30x your bet
- Super Bonus Game: Guaranteed entry into the Super Bonus Game, with an increased chance of landing high-paying symbols of greater potential, for 75x your bet
Only Diamonds has a maximum win capacity of 3,500x your bet. If a single session achieves this figure, the player returns to the base game with the qualifying amount.

Our Honest Verdict
It’s easy to look through the lens of innovation, looking for the next hot thing. Who has the edgiest new theme, the most peculiar new mechanic and the most outlandish ideas?
Seemingly, anything but slots which meet the criteria is regarded as lacking, uninteresting or even irrelevant by your die-hard progressive players. Only Diamonds won’t appeal to you if you’re one of these people, but there’s a hefty share of players who still prefer things more traditional, something that resembles a classic, something that resembles something as you’d see in Vegas.
After all, slots in Las Vegas do not dabble in what many online consider to be mainstream, but tried and tested mechanics. Jackpots, diamonds, depictions of wealth, other buzz words and alarms are dated but still very current.
Only Diamonds gets down to business as its name might suggest. It focuses not on modifiers to sell it, but on the concept of straightforward gameplay for your no BS player.
It’s a medium volatility slot with what we found to be a fairly frequent bonus round, and even a ‘super mode’ if you need a bit of convincing. Only Diamonds is unapologetically classic, and despite modern tastes, should cater quite well to a sizable portion of players.
We can see why it may not be everyone’s cup of tea, but all in all, it delivers what it says on the box, and if Vegas can teach the chronically online anything, it’s that you don’t need to be obsessed with reinventing the wheel, or try too hard to cater to players chasing those novelty ideas.
*The images found in this slot review are currently from Demo Play. On average, our reviews are written prior to the initial release date and before real play is available.
Only Diamonds FAQs
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What is the volatility of Only Diamonds?
Only Diamonds is rated as a medium volatility slot. -
How do Jackpot prizes work?
Jackpot symbols award instant payouts when revealed. -
Can players buy the bonus?
Yes, players can purchase either the standard Bonus Game or the Super Bonus Game. -
What is the maximum win in Only Diamonds?
The slot offers a maximum win potential of 3,500x the bet.


