--- title: "Gem Vault case on CSGOBig: odds, RTP & drops · gambatracker" description: "Gem Vault ($1,267.56) on CSGOBig, a CS2 case site: advertised RTP 90.00% from 21 items with odds. Independent and free, no sign-up." url: https://gambatracker.com/cases/csgobig/453 rendered: 2026-11-11T13:36Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Gem Vault](https://gambatracker.com/cases/csgobig/453) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Gem Vault A case on CSGOBig, first seen 3 Nov 2026. Every value is CSGOBig's own item price converted from csgobig coin at the rate on the site page. [24h](https://gambatracker.com/cases/csgobig/453?window=24h) [7d](https://gambatracker.com/cases/csgobig/453?window=7d) [30d](https://gambatracker.com/cases/csgobig/453) [All](https://gambatracker.com/cases/csgobig/453?window=all) Price · $1,267.56 · 1,268 CSGOBIG\_COIN Advertised RTP · 90.00% · EV $1,140.80 from 21 items Observed RTP, 30d · — · no counted openings Variance · 15.2× · of price², per opening Tail share · 1 in 18 · of openings carry half the EV Below price · 77.0% · of openings return less than the price ## Advertised vs observed · per window, 95% band and the advertised marker **No counted openings yet** Openings inside battles and free cases are listed but never counted. ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgobig/453?window=24h) | 0 | — | — | — | | [7d](https://gambatracker.com/cases/csgobig/453?window=7d) | 0 | — | — | — | | [30d](https://gambatracker.com/cases/csgobig/453) | 0 | — | — | — | | [All](https://gambatracker.com/cases/csgobig/453?window=all) | 0 | — | — | — | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 21 items · odds sum to 1 · observed counts over 0 openings, 30 days Share of the expected value, most valuable first; colour is the item's rarity. | Item | Odds | Value | EV share | Observed | Expected | Hot / cold | | --- | --- | --- | --- | --- | --- | --- | | [★ Karambit \| Case Hardened (Field Tested) - Pattern 387 knife · #EB4B4B](https://gambatracker.com/items/karambit-case-hardened-field-tested-pattern-387) | 1 in 10,000 | $250K 250,000 CSGOBIG\_COIN | 2.2% | 0 | 0.0 | — | | [Souvenir AWP \| Dragon Lore (Minimal Wear) Souvenir · weapon · covert](https://gambatracker.com/items/souvenir-awp-dragon-lore-minimal-wear) | 1 in 5,000 | $205K 205,000 CSGOBIG\_COIN | 3.6% | 0 | 0.0 | — | | [StatTrak™ AK-47 \| Case Hardened (Minimal Wear) - Pattern 661 StatTrak · weapon · #D32CE6](https://gambatracker.com/items/stattrak-ak-47-case-hardened-minimal-wear-pattern-661) | 1 in 3,333 | $100K 100,000 CSGOBIG\_COIN | 2.6% | 0 | 0.0 | — | | [Sticker \| Titan (Holo) \| Katowice 2014 sticker · legendary](https://gambatracker.com/items/sticker-titan-holo-katowice-2014) | 1 in 2,000 | $75K 75,000 CSGOBIG\_COIN | 3.3% | 0 | 0.0 | — | | [★ Butterfly Knife \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/butterfly-knife-gamma-doppler-factory-new-emerald) | 1 in 1,000 | $17.5K 17,500 CSGOBIG\_COIN | 1.5% | 0 | 0.0 | — | | [★ Butterfly Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-ruby) | 1 in 1,000 | $15K 15,000 CSGOBIG\_COIN | 1.3% | 0 | 0.0 | — | | [★ M9 Bayonet \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/m9-bayonet-gamma-doppler-factory-new-emerald) | 1 in 667 | $14.5K 14,500 CSGOBIG\_COIN | 1.9% | 0 | 0.0 | — | | [★ Karambit \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/karambit-gamma-doppler-factory-new-emerald) | 1 in 500 | $13.4K 13,400 CSGOBIG\_COIN | 2.3% | 0 | 0.0 | — | | [★ M9 Bayonet \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/m9-bayonet-doppler-factory-new-ruby) | 1 in 400 | $13.1K 13,100 CSGOBIG\_COIN | 2.9% | 0 | 0.0 | — | | [★ Butterfly Knife \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-sapphire) | 1 in 286 | $12.5K 12,500 CSGOBIG\_COIN | 3.8% | 0 | 0.0 | — | | [★ Butterfly Knife \| Doppler (Factory New) (Black Pearl) knife · covert · Black Pearl](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-black-pearl) | 1 in 200 | $11.7K 11,700 CSGOBIG\_COIN | 5.1% | 0 | 0.0 | — | | [★ Karambit \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/karambit-doppler-factory-new-ruby) | 1 in 167 | $10.7K 10,700 CSGOBIG\_COIN | 5.6% | 0 | 0.0 | — | | [★ M9 Bayonet \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/m9-bayonet-doppler-factory-new-sapphire) | 1 in 143 | $9,800 9,800 CSGOBIG\_COIN | 6.0% | 0 | 0.0 | — | | [★ Talon Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/talon-knife-doppler-factory-new-ruby) | 1 in 125 | $4,750 4,750 CSGOBIG\_COIN | 3.3% | 0 | 0.0 | — | | [★ Talon Knife \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/talon-knife-doppler-factory-new-sapphire) | 1 in 61 | $3,500 3,500 CSGOBIG\_COIN | 5.0% | 0 | 0.0 | — | | [★ Bayonet \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/bayonet-doppler-factory-new-sapphire) | 1 in 40 | $2,600 2,600 CSGOBIG\_COIN | 5.7% | 0 | 0.0 | — | | [★ Huntsman Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/huntsman-knife-doppler-factory-new-ruby) | 1 in 17 | $1,700 1,700 CSGOBIG\_COIN | 8.9% | 0 | 0.0 | — | | [M4A4 \| Poseidon (Factory New) weapon · classified](https://gambatracker.com/items/m4a4-poseidon-factory-new) | 1 in 11 | $1,300 1,300 CSGOBIG\_COIN | 10.3% | 0 | 0.0 | — | | [★ StatTrak™ Talon Knife \| Marble Fade (Factory New) StatTrak · knife · covert](https://gambatracker.com/items/stattrak-talon-knife-marble-fade-factory-new) | 11.0% | $895 895 CSGOBIG\_COIN | 8.6% | 0 | 0.0 | — | | [★ Nomad Knife \| Case Hardened (Minimal Wear) knife · covert](https://gambatracker.com/items/nomad-knife-case-hardened-minimal-wear) | 31.0% | $385 385 CSGOBIG\_COIN | 10.5% | 0 | 0.0 | — | | [StatTrak™ M4A1-S \| Golden Coil (Minimal Wear) StatTrak · weapon · covert](https://gambatracker.com/items/stattrak-m4a1-s-golden-coil-minimal-wear) | 35.0% | $175 175 CSGOBIG\_COIN | 5.4% | 0 | 0.0 | — | Values are CSGOBig's own item prices; EV share = odds × value ÷ EV. Hot / cold compares observed drops of each item with odds × openings; small expected counts are left blank. Odds read from `csgobig:api/cases/getDetails?id=453`, 11 Nov, 13:05 UTC. ## Biggest drops · from this case, by value **No drops yet** No drop from this case seen yet. ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=csgobig&case=453) **No drops yet** No drop from this case seen yet. ## Observed RTP over time · daily, 30 days No history yet ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $1,268 | 90.00% | 21 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed #EB4B4B 0.0% covert 90.9% #D32CE6 0.0% legendary 0.1% classified 9.0% 18+ **Case opening is gambling with skins as the currency.** At 90.0% RTP, every $100 put into cases returns $90.00 on average: an expected loss of $10.00 per $100, before any one lucky or unlucky opening. A big drop here says nothing about the next one. [BeGambleAware](https://www.begambleaware.org/) [Help & limits](https://gambatracker.com/responsible-gambling) How these figures are produced and labelled: https://gambatracker.com/llms.txt