Diamonds — How to play & pay table

Everything about the game: how it plays, what each combination pays, the RTP, and how every round can be verified on-chain.

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Diamonds

Five stones, seven colours

House Edge: 4.96%

Diamonds is a five-stone roll running entirely on-chain. You choose nothing — you stake and roll. Each stone takes one of seven colours, for 16,807 equally likely outcomes, and the shape of the set decides what comes back.

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Fairness

The result is not produced by your browser. The chain generates a VRF-proved random value, reduces it modulo 16,807 and reads it in base 7 — those five digits are the five stones, lowest first, and they are written straight into the settle event. Repeat those six divisions and you get exactly the same board. The paytable lives on the contract and returns exactly 15974/16,807 — 95.04% — leaving the house 4.96%.

Randomness by: Chainlink VRF · SwitchboardContract operated by: DODEN.IO

Pay table

A roll drops five stones in seven colours; the SHAPE of the set decides the payout. The rows are ordered by PRICE, not by rarity — so each prints its own chance. Note: the 0.3× pair is a LOSS (money back, not a win), and it is nearly half of all rolls.

Shape	Chance	Pays
Five of a Kind	0.0416%	20×
Four of a Kind	1.25%	7.9×
Full House	2.50%	4×
Three of a Kind	12.49%	2.5×
Two Pairs	18.74%	1.5×
Pair	49.98%	0.3×
Zero Match	14.99%	0×

How to win

You choose nothing — you stake and roll. Five stones drop, each one of seven colours.
The shape of the five-stone set is matched to the table: five alike is the 20× top; a pair returns only 0.3× and is a loss.
Every roll is equally likely (16,807 in total), so a shape's chance is exactly its share of those rolls.

RTP & house edge

A roll returns exactly 15974/16,807 of the stake — 95.04% — so the house edge is exactly 833/16,807 = 4.96%. The contract proves that identity when the table is loaded: a table that does not carry it cannot be loaded. Every spin also has a chance at the shared system jackpot.

Add it up yourself — why the RTP is exactly what we publish

The return rate is not a claim we make; it is a sum. Take how OFTEN each outcome happens, multiply by what it PAYS, and add the results. The table below prints all three columns, so you can check it on a calculator — the last column has to total the published figure. Multipliers are read straight from the table compiled into the on-chain program.

Shape	Chance	Pays	Adds to RTP
Five of a Kind	0.041649%	20×	0.833%
Four of a Kind	1.249479%	7.9×	9.871%
Full House	2.498959%	4×	9.996%
Three of a Kind	12.494794%	2.5×	31.237%
Two Pairs	18.742191%	1.5×	28.113%
Pair	49.979175%	0.3×	14.994%
Zero Match	14.993753%	0×	0.000%
Total = RTP			95.044%

Provably fair

Frequently asked questions

How does Diamonds work?: You choose nothing — you stake and roll. Five stones drop, each taking one of seven colours, for 16,807 equally likely outcomes. The shape of the set decides the payout: five alike 20×, four alike 7.9×, a full house 4×, three alike 2.5×, two pairs 1.5×, one pair 0.3×, and five different colours loses.
Is the 0.3× pair a win or a loss?: It is a loss. A pair lands on 8,400 of the 16,807 rolls — 49.98%, very nearly half of them — and returns only 0.3× of the stake, meaning most of it is gone. The paytable marks it as partial money back and never colours it as a win.
Why does the rarest losing shape still pay nothing?: Because the paytable is ordered by price, not by rarity. Five different colours lands on 2,520 of the 16,807 rolls — 14.99%, genuinely rarer than a pair's 8,400 — and it is still the 0× row. The two do not track each other, which is why every row prints its own chance beside its multiplier.
What is the payout rate?: A roll returns exactly 15,974/16,807 of the stake — 95.04% — so the house edge is exactly 833/16,807 = 4.96%. The contract proves that identity when the table is loaded: a table that does not carry it cannot be loaded at all, so no bet is ever placed against the wrong odds.
How do I verify a roll?: Take the VRF-proved random value, reduce it modulo 16,807, and read the result in base 7. Those five digits are the five stones, lowest stone first. Count the matching colours to name the shape, then read the table for the multiplier — one modulo and five divisions in all.