4 Supershiny Diamonds: Hold and Win Demo Slot
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4 Supershiny Diamonds: Hold and Win Slot Review
Written by: Filip Gromovic Reviewed by: Nashon Khamala
Updated: Aug 2026
4 Supershiny Diamonds: Hold and Win is a jewel-themed slot released by Playson on August 6, 2026. It is the fourth entry in the Diamonds Hold and Win sub-series and introduces two separate bonus game modes — a standard Hold and Win round and a Super Bonus Game on an expanded 5×5 grid — alongside a colour-coded, three-way feature system tied to diamond symbol combinations.
The maximum win is 10,000× the stake, reached by filling all 25 positions in the Super Bonus Game. The standard Bonus Game carries its own Grand Jackpot at 3,000× for filling all 15 positions. RTP and base game grid are set at the operator level — confirm them in the in-game paytable before playing.
There are no free spins in this title. All bonus value sits inside the two Hold and Win modes, the three Diamond features, and the Extra Feature symbol. The sections below cover every mechanic in detail.
How to Play 4 Supershiny Diamonds: Hold and Win
4 Supershiny Diamonds: Hold and Win runs on a base game grid set against a royal purple backdrop, mixing classic slot symbols with coloured diamond symbols. The standard base game produces regular wins, but the title’s payout weight sits entirely inside the two bonus modes triggered by diamond combinations.
Here is how a typical session unfolds:
- Set your stake using the bet controls.
- Spin the base game reels to look for violet, blue, or green Feature Diamonds.
- When Feature Diamonds land alongside an enlarged matching-coloured Diamond above the reels, the Hold and Win Bonus Game triggers.
- Inside the Bonus Game, coins lock in place and you receive 3 respins. Each new coin that lands resets the counter to 3.
- The colour of the Feature Diamonds determines which of the three mechanics — Multi, Charge, or Collect — activates during the bonus.
- Landing a Super Diamond in the base game launches the Super Bonus Game on an expanded 5×5 field instead.
- Fill all 15 positions in the standard Bonus Game to award the 3,000× Grand Jackpot. Fill all 25 in the Super Bonus Game to unlock the 10,000× Super Jackpot.
Up to four Feature Diamonds can land simultaneously on a single spin. The Extra Feature symbol, which can appear during either bonus, transforms into a random-coloured Diamond and adds or strengthens whichever feature is currently in play.
Bonus Features: Hold and Win Bonus Game, Super Bonus Game & Diamond Features
The entire bonus architecture of 4 Supershiny Diamonds: Hold and Win is built around two Hold and Win modes and a three-way colour-coded feature system. There are no free spins or scatter-triggered rounds. All bonus value is generated through the diamond mechanics below.
Hold and Win Bonus Game
The standard Hold and Win Bonus Game triggers when violet, blue, or green Feature Diamonds land and combine with enlarged matching-coloured Diamonds positioned above the reels. The triggering diamonds lock in place and you receive 3 respins. Every new diamond or jackpot diamond that lands during the feature resets the respin counter back to 3.
The round ends when the respin counter reaches zero or all 15 grid positions are filled. Filling all 15 positions awards the 3,000× Grand Jackpot. The colour of the Feature Diamonds that triggered the round determines which of the three diamond features is active throughout the bonus.
Diamond Features: Multi, Charge & Collect
Three distinct features operate inside both bonus games, determined by which coloured diamonds are present. They can combine during the Super Bonus Game.
Multi — Triggered by violet Diamonds. Multipliers of up to 10× are added to empty cells on the grid. If a multiplier lands on a cell that already carries a multiplier, the two values stack for an increased combined multiplier.
Charge — Triggered by green Diamonds. Each green Diamond that lands during the bonus reveals six additional cells, each containing either a random Diamond or a Jackpot Diamond. This is the primary mechanism for expanding grid coverage and reaching the full-board jackpot positions.
Collect — Triggered by blue Diamonds. When a blue Diamond lands with the Collect feature active, it gathers the value of every symbol currently in play on the grid, including any multipliers attached to a Diamond, Super Diamond, or Jackpot symbol. This applies to the cumulative total at the moment of collection.
Super Bonus Game
The Super Bonus Game is a separate bonus mode with a larger payout ceiling. It launches when a Super Diamond lands during the base game. The playing field expands to a 5×5 grid of 25 positions, compared to 15 in the standard Bonus Game.
Inside the Super Bonus Game, the active Super Diamond continues landing random coloured diamonds until six are present. Each new diamond either unlocks an additional feature or upgrades one already active. Multi, Charge, and Collect can all operate simultaneously within this round. Filling all 25 positions in the Super Bonus Game awards the 10,000× Super Jackpot.
Extra Feature Symbol
The Extra Feature symbol can land during either the standard Hold and Win Bonus Game or the Super Bonus Game. When it appears, it transforms into a random violet, green, or blue Diamond. Depending on the colour assigned, it adds whichever feature (Multi, Charge, or Collect) corresponds to that colour, or enhances the one already in play if the same feature is active.
Jackpot System: Grand Jackpot & Super Jackpot
4 Supershiny Diamonds: Hold and Win uses a dual-jackpot structure tied directly to grid completion in the two bonus modes. This is distinct from network progressives or random jackpot triggers — both jackpots require filling every available grid position during the corresponding bonus.
| Jackpot | Bonus Mode | Condition | Payout |
| Grand Jackpot | Hold and Win Bonus Game | Fill all 15 positions | 3,000× stake |
| Super Jackpot | Super Bonus Game (5×5) | Fill all 25 positions | 10,000× stake |
The Charge feature (green Diamonds) is the most direct path toward filling grid positions, since each landing reveals six additional cells. Combining Charge with Multi — which stacks multipliers onto occupied cells — increases the total value of positions already held before going for full coverage. The Collect feature (blue Diamonds) locks in accumulated value at the moment it fires, which matters most when multiplier stacks are already high on the grid.
The Super Jackpot at 10,000× requires reaching the Super Bonus Game via a Super Diamond landing in the base game and then filling all 25 positions. Because the Super Bonus Game activates all three features in combination and the Super Diamond keeps adding diamonds until six are present, the path to 10,000× involves more grid coverage mechanics per session than the standard 15-position route to the Grand.
How to Win in 4 Supershiny Diamonds: Hold and Win
All significant payouts in this title come from the two Hold and Win modes. The base game serves as the trigger mechanism. Session planning should account for the fact that the Grand Jackpot requires filling a 15-position grid and the Super Jackpot requires a 25-position fill — both outcomes depend on how many diamonds land and how the three features interact.
- The Charge feature (green Diamonds) is the primary driver of grid coverage. Each green Diamond reveals six additional cells containing random Diamonds or Jackpot Diamonds. When Charge is active and diamonds are landing consistently, the respin counter keeps resetting and the grid fills faster. Sessions where green Diamonds appear early in a bonus round have higher coverage potential than those relying only on standard diamond landings.
- The Multi feature (violet Diamonds) adds multipliers of up to 10× to empty cells and stacks on existing multipliers. Its impact on total payout is highest when multiplier symbols are locked onto grid positions before a Collect or end-of-round total is calculated. In the Super Bonus Game, having Multi active alongside Charge means each new diamond can land on a multiplied cell.
- The Collect feature (blue Diamonds) captures the cumulative value of all symbols and multipliers currently on the grid at the moment it fires. This means Collect’s value scales directly with how much Multi has already built up. In the Super Bonus Game, where all three features can combine, a Collect event late in the round — after multiple Multi stacks — can produce the largest single-event payout.
- The Super Bonus Game is the higher-ceiling route. The 5×5 grid, multi-feature combinations, and 10,000× Super Jackpot make it the more impactful of the two bonus modes. However, it requires a Super Diamond landing in the base game, which is a separate trigger condition from the standard Bonus Game. Testing the free demo helps establish a feel for how often each trigger type appears before committing stakes to real-money play.
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Play 4 Supershiny Diamonds: Hold and Win for Free
A free demo version of 4 Supershiny Diamonds: Hold and Win is available at slot databases and casino sites that carry Playson content. The demo replicates the full mechanic set — both bonus game modes, all three Diamond features, the Extra Feature symbol, and both jackpot conditions — making it a practical environment for learning how the colour-coded system works before playing for real money.
Demo access varies by region and operator. Some casinos require registration before allowing free play; others allow instant access without an account. The game is built in HTML5 and runs in any modern browser on desktop and mobile without additional software. Confirm the RTP displayed in the in-game paytable when you switch from demo to real-money play, as operator versions may differ.
Similar Slots Worth Trying
4 Supershiny Diamonds: Hold and Win is the fourth release in Playson’s Diamonds Hold and Win sub-series. The three preceding titles share the core Hold and Win respin structure but use different feature layers and grid configurations.
| Slot | Provider | Release | Key Difference |
| 3 Supercharged Diamonds: Hold and Win | Playson | May 2026 | Previous series entry; no dual-grid bonus structure |
| Diamonds Power XXL: Hold and Win | Playson | November 2026 | XXL format; same Hold and Win base, no Super Bonus Game |
| Diamonds Power: Hold and Win | Playson | November 2023 | 3×3 grid, 5 paylines, RTP 95.66%; simpler feature set |
Players who find the dual-bonus structure of 4 Supershiny Diamonds too complex may prefer Diamonds Power: Hold and Win, which uses a compact 3×3 grid and a single Hold and Win round with a maximum win of 1,057×. Players drawn specifically to the 5×5 expanded grid format in the Super Bonus Game can look at other Playson titles in the “Super” series, such as 4 Pots Riches: Super Wheel, which uses a different theme but also features an expanded bonus field.
The maximum win is 10,000× the stake, awarded as the Super Jackpot for filling all 25 positions in the Super Bonus Game. The standard Hold and Win Bonus Game carries a separate Grand Jackpot at 3,000× for filling all 15 positions in that mode.
The Hold and Win Bonus Game triggers when violet, blue, or green Feature Diamonds land on the reels and combine with enlarged matching-coloured Diamonds positioned above the reels. The triggering diamonds lock in place and you receive 3 respins. Each new diamond that lands resets the counter to 3.
The Super Bonus Game triggers when a Super Diamond lands during the base game. It operates on an expanded 5×5 grid of 25 positions, versus the 15 positions in the standard Hold and Win Bonus Game. All three Diamond features (Multi, Charge, Collect) can activate simultaneously in the Super Bonus Game. Filling all 25 positions awards the 10,000× Super Jackpot.
Violet Diamond (Multi): adds multipliers of up to 10× to empty cells, or stacks onto existing multipliers. Green Diamond (Charge): each landing reveals six additional cells containing random Diamonds or Jackpot Diamonds. Blue Diamond (Collect): gathers the total value of all symbols in play at the moment it fires, including any multipliers attached to Diamonds or Jackpot symbols.
No. This title does not include a free spins feature. All bonus value is delivered through the Hold and Win Bonus Game, the Super Bonus Game, and the three colour-coded Diamond features.
The Extra Feature symbol can appear during either bonus game. When it lands, it transforms into a random violet, green, or blue Diamond, adding the corresponding Multi, Charge, or Collect feature — or enhancing a feature already active in the round.
Playson released 4 Supershiny Diamonds: Hold and Win on August 6, 2026. It is the fourth entry in the Diamonds Hold and Win sub-series, following 3 Supercharged Diamonds: Hold and Win (May 2026) and Diamonds Power XXL: Hold and Win (November 2026).
Up to four Feature Diamonds can land simultaneously on a single spin. The combination of colours that appear determines which features activate and whether multiple features operate at the same time during the bonus round.
Yes. A free demo is available at casino sites and slot databases carrying Playson content. The demo includes both bonus game modes, all three Diamond features, and both jackpot conditions. Access rules vary by region and operator — some require registration, others allow instant play.
4 Supershiny Diamonds: Hold and Win belongs to Playson's Diamonds Hold and Win sub-series. Earlier entries include Diamonds Power: Hold and Win (November 2023), Diamonds Power XXL: Hold and Win (November 2026), and 3 Supercharged Diamonds: Hold and Win (May 2026). Each entry adds a new mechanic layer to the core Hold and Win structure.
Conclusion: Who Suits 4 Supershiny Diamonds: Hold and Win
4 Supershiny Diamonds: Hold and Win suits players who specifically want Hold and Win mechanics at their most mechanically layered. The combination of two separate bonus game modes, three interacting Diamond features, and two distinct jackpot thresholds — 3,000× and 10,000× — gives this title more variable-outcome depth than any previous entry in Playson's Diamonds series.
Players who prefer a single, straightforward Hold and Win structure with predictable respin behaviour will find the colour-coded feature system adds complexity that takes time to read in real sessions. The standard Diamonds Power: Hold and Win (3×3 grid, single bonus round, 1,057× max win) is the simpler alternative within the same series for those who want fewer moving parts. Players targeting the 10,000× ceiling need the Super Bonus Game specifically — the base Hold and Win Bonus Game tops out at 3,000× regardless of feature combinations.
Start with the free demo to understand how the Multi, Charge, and Collect features interact before both bonus modes have been seen in play. Confirm the active RTP in the paytable at your specific casino before switching to real-money sessions, as Playson titles support operator-configurable RTP settings.
Filip Gromovic is a senior slots reviewer here at FreeSlots99 with over five years of experience evaluating the latest drops in the world of iGaming.
Being a slot fan himself, Filip approaches slot ratings just the way we like it – professionally, but also from a player’s standpoint.
That enables him to give his unbiased take on the slot’s features, gameplay and design, while only recommending top-tier releases to our readers.
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Having served FreeSlots99 for more than 5 years as a senior content editor and reviewer, Nashon Khamala has extensive knowledge in game slots and iGaming.
His membership in the Editorial Freelancers Association helps him deliver content that reaches both editorial excellence standards and an engaging information level.
By using his expertise in slots games combined with player-focused analysis, Nashon delivers a professional evaluation of slot features and player experiences in his reviews.
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