Stone
Provably Fair · RTP 95%No bets yet.
Gem chances by miner level
| Gem | Multiplier | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 |
|---|---|---|---|---|---|---|
| Stone | 0× | 30.91% | 30.91% | 30.91% | 30.91% | 30.91% |
| Garnet | 1.1× | 49.09% | 49.09% | 49.09% | 49.09% | 49.09% |
| Amethyst | 1.5× | 14.00% | 14.00% | 15.20% | 16.40% | 17.62% |
| Topaz | 2× | 5.00% | 5.50% | 4.50% | 3.40% | 2.26% |
| Tourmaline | 10× | 1.00% | 0.400% | 0.220% | 0.150% | 0.080% |
| Tanzanite | 50× | — | 0.100% | 0.060% | 0.034% | 0.029% |
| Ruby | 200× | — | — | 0.020% | 0.012% | 0.0080% |
| Sapphire | 1,000× | — | — | — | 0.0040% | 0.0022% |
| Emerald | 5,000× | — | — | — | — | 0.0008% |
| RTP | 95.00% | 95.00% | 95.00% | 95.00% | 95.00% |
How to play Stone
Each press of Cut stone cuts 1 stone (or up to 100 at once with Batch cut; the bet is the price per stone). Every stone holds one gem with a fixed multiplier from 1.1× to 5,000×, or is just stone (0×). Your miner has 5 levels: find Tourmaline or a rarer gem 3, 3, 2 and 2 times at levels 1–4 to level up; higher levels unlock Tanzanite (50×), Ruby (200×), Sapphire (1,000×) and Emerald (5,000×). After 24 hours without play the miner goes back to level 1 (level 5: 7 days). Every level has the same RTP of 95.0%: a higher level only trades steady small wins for rare big ones. Stone i uses float i from the server seed, client seed and nonce.
How does the miner level up?
Every Tourmaline (10×) or rarer gem you find counts towards your current level: 3 at levels 1 and 2, 2 at levels 3 and 4. Once you have enough the miner levels up at once, even in the middle of a batch cut: the stones after it are cut at the new level.
Are higher levels better?
Not on average: every level returns the same share (about 95%). Higher levels unlock Tanzanite 50×, Ruby 200×, Sapphire 1,000× and Emerald 5,000×, so big wins become possible, while Garnet and Amethyst come up a little less often. Each bet's win is still limited by the site's maximum profit.
Why am I back at level 1?
The miner keeps its level for 24 hours after the last cut (7 days at level 5). Without play in that time the level and the rare gems found reset.
How do I verify the result?
Stone i uses float i from the server seed, client seed and nonce: take floor(float × 10,000,000) and look it up in the chance table of the level the stone was cut at (stone first, then Garnet, Amethyst… up to Emerald). The full table is below the game.