CS2 Knife Guide
CS2 Doppler Phases Explained
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Every Doppler and Gamma Doppler phase — what it looks like, the paint index that identifies it, and what each phase costs per knife with live marketplace prices.
The Phases
Phase 1
Balanced mix of blue and purple with some pink — the baseline Doppler look.
Phase 2
The most pink/purple-heavy phase, usually the priciest of the four standard phases.
Phase 3
Mostly deep blue with black — typically the cheapest standard phase.
Phase 4
Predominantly blue with hints of purple — a close second to Phase 2 in demand.
Ruby
Rare all-red phase — one of the three premium Doppler outcomes.
Sapphire
Rare all-blue phase — usually the most expensive Doppler outcome.
Black Pearl
Rarest standard-Doppler phase: deep black with purple-green shimmer.
Emerald
Gamma Doppler's rare all-green phase — the green counterpart to the Sapphire.
The phase is locked in the moment the knife drops — float never changes it. Verify any premium-phase listing against our pattern database and check the float with the float checker before paying a phase premium.
Which Number Actually Sets the Phase
Every phase ships as its own paint kit, and each kit has a fixed paint index — the paint-kit ID an inspect link returns, and the number that decides the phase. It is a different field from the paint seed(or pattern index), the 0–999 value our pattern database covers: the seed shifts pattern placement, but it never changes which phase you have.
The indexes below are read straight out of the CS2 game-file bundle we ship with the site. Note that a phase is not always one number: the Butterfly Knife and Shadow Daggers received their Sapphire, Black Pearl, and Phase 2 kits from a later block than the original knives, the Talon Knife has its own Phase 1–4 block, and the Glock-18 Gamma Doppler another again. Checking a listing against a single remembered number is how people misread those knives.
| Finish | Phase | Paint index | Weapons on that kit |
|---|---|---|---|
| Doppler | Phase 1 | 418 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Shadow Daggers, Skeleton Knife, Stiletto Knife, Survival Knife, Ursus Knife |
| 852 | Talon Knife | ||
| Doppler | Phase 2 | 419 | Bayonet, Bowie Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Skeleton Knife, Stiletto Knife, Survival Knife, Ursus Knife |
| 618 | Butterfly Knife, Shadow Daggers | ||
| 853 | Talon Knife | ||
| Doppler | Phase 3 | 420 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Shadow Daggers, Skeleton Knife, Stiletto Knife, Survival Knife, Ursus Knife |
| 854 | Talon Knife | ||
| Doppler | Phase 4 | 421 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Shadow Daggers, Skeleton Knife, Stiletto Knife, Survival Knife, Ursus Knife |
| 855 | Talon Knife | ||
| Doppler | Ruby | 415 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Shadow Daggers, Skeleton Knife, Stiletto Knife, Survival Knife, Talon Knife, Ursus Knife |
| Doppler | Sapphire | 416 | Bayonet, Bowie Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Skeleton Knife, Stiletto Knife, Survival Knife, Talon Knife, Ursus Knife |
| 619 | Butterfly Knife, Shadow Daggers | ||
| Doppler | Black Pearl | 417 | Bayonet, Bowie Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Navaja Knife, Nomad Knife, Paracord Knife, Skeleton Knife, Stiletto Knife, Survival Knife, Talon Knife, Ursus Knife |
| 617 | Butterfly Knife, Shadow Daggers | ||
| Gamma Doppler | Phase 1 | 569 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Shadow Daggers |
| 1120 | Glock-18 | ||
| Gamma Doppler | Phase 2 | 570 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Shadow Daggers |
| 1121 | Glock-18 | ||
| Gamma Doppler | Phase 3 | 571 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Shadow Daggers |
| 1122 | Glock-18 | ||
| Gamma Doppler | Phase 4 | 572 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Shadow Daggers |
| 1123 | Glock-18 | ||
| Gamma Doppler | Emerald | 568 | Bayonet, Bowie Knife, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife, Huntsman Knife, Karambit, M9 Bayonet, Shadow Daggers |
| 1119 | Glock-18 |
Butterfly Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $2,146 | |
| Phase 1 | $1,783 | |
| Phase 2 | $4,139 | |
| Phase 2 | $2,225 | |
| Phase 3 | $2,060 | |
| Phase 3 | $1,773 | |
| Phase 4 | $2,750 | |
| Phase 4 | $1,759 | |
| Ruby | $9,256 | |
| Sapphire | $5,859 | |
| Black Pearl | $2,146 | |
| Emerald | $7,699 |
M9 Bayonet Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $1,201 | |
| Phase 1 | $905.00 | |
| Phase 2 | $1,549 | |
| Phase 2 | $1,220 | |
| Phase 3 | $1,200 | |
| Phase 3 | $934.77 | |
| Phase 4 | $1,190 | |
| Phase 4 | $999.05 | |
| Ruby | $7,800 | |
| Sapphire | $3,492 | |
| Black Pearl | $7,407 | |
| Emerald | $6,400 |
Karambit Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $1,852 | |
| Phase 1 | $1,268 | |
| Phase 2 | $2,250 | |
| Phase 2 | $1,845 | |
| Phase 3 | $1,641 | |
| Phase 3 | $1,267 | |
| Phase 4 | $1,671 | |
| Phase 4 | $1,299 | |
| Ruby | $7,550 | |
| Sapphire | $4,555 | |
| Black Pearl | $7,713 | |
| Emerald | $7,171 |
Talon Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $780.00 | |
| Phase 2 | $1,007 | |
| Phase 3 | $794.67 | |
| Phase 4 | $860.00 | |
| Ruby | $2,578 | |
| Sapphire | $1,630 | |
| Black Pearl | $844.00 |
Skeleton Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $598.00 | |
| Phase 2 | $745.00 | |
| Phase 3 | $598.44 | |
| Phase 4 | $637.67 | |
| Ruby | $2,336 | |
| Sapphire | $1,368 | |
| Black Pearl | $2,298 |
Bayonet Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $467.36 | |
| Phase 1 | $373.04 | |
| Phase 2 | $588.85 | |
| Phase 2 | $464.26 | |
| Phase 3 | $476.56 | |
| Phase 3 | $372.67 | |
| Phase 4 | $477.61 | |
| Phase 4 | $387.82 | |
| Ruby | $1,724 | |
| Sapphire | $1,185 | |
| Black Pearl | $1,901 | |
| Emerald | $1,602 |
Stiletto Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $442.96 | |
| Phase 2 | $588.00 | |
| Phase 3 | $440.26 | |
| Phase 4 | $496.15 | |
| Ruby | $1,729 | |
| Sapphire | $971.00 | |
| Black Pearl | $505.99 |
Flip Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $392.50 | |
| Phase 1 | $296.15 | |
| Phase 2 | $458.95 | |
| Phase 2 | $385.00 | |
| Phase 3 | $387.08 | |
| Phase 3 | $296.08 | |
| Phase 4 | $386.00 | |
| Phase 4 | $307.04 | |
| Ruby | $1,335 | |
| Sapphire | $889.96 | |
| Black Pearl | $1,325 | |
| Emerald | $1,332 |
Nomad Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $353.02 | |
| Phase 2 | $426.81 | |
| Phase 3 | $360.18 | |
| Phase 4 | $394.96 | |
| Ruby | $1,129 | |
| Sapphire | $700.00 | |
| Black Pearl | $1,070 |
Huntsman Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $272.73 | |
| Phase 1 | $207.51 | |
| Phase 2 | $325.20 | |
| Phase 2 | $226.79 | |
| Phase 3 | $257.84 | |
| Phase 3 | $199.03 | |
| Phase 4 | $306.20 | |
| Phase 4 | $190.00 | |
| Ruby | $859.46 | |
| Sapphire | $575.29 | |
| Black Pearl | $1,041 | |
| Emerald | $600.72 |
Bowie Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $234.40 | |
| Phase 1 | $182.30 | |
| Phase 2 | $272.61 | |
| Phase 2 | $179.76 | |
| Phase 3 | $227.40 | |
| Phase 3 | $178.49 | |
| Phase 4 | $177.23 | |
| Phase 4 | $282.00 | |
| Ruby | $705.00 | |
| Sapphire | $450.62 | |
| Black Pearl | $940.00 | |
| Emerald | $469.94 |
Ursus Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $220.00 | |
| Phase 2 | $264.15 | |
| Phase 3 | $220.21 | |
| Phase 4 | $227.66 | |
| Ruby | $723.76 | |
| Sapphire | $459.81 | |
| Black Pearl | $697.13 |
Falchion Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $277.00 | |
| Phase 1 | $202.00 | |
| Phase 2 | $320.00 | |
| Phase 2 | $216.71 | |
| Phase 3 | $267.67 | |
| Phase 3 | $200.37 | |
| Phase 4 | $294.17 | |
| Phase 4 | $201.35 | |
| Ruby | $665.39 | |
| Sapphire | $490.65 | |
| Black Pearl | $357.50 | |
| Emerald | $495.56 |
Paracord Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $180.82 | |
| Phase 2 | $214.97 | |
| Phase 3 | $179.07 | |
| Phase 4 | $191.99 | |
| Ruby | $548.40 | |
| Sapphire | $364.67 | |
| Black Pearl | $589.74 |
Shadow Daggers Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $124.80 | |
| Phase 1 | $96.47 | |
| Phase 2 | $187.99 | |
| Phase 2 | $99.77 | |
| Phase 3 | $119.00 | |
| Phase 3 | $98.81 | |
| Phase 4 | $134.99 | |
| Phase 4 | $96.45 | |
| Ruby | $342.45 | |
| Sapphire | $205.50 | |
| Black Pearl | $519.14 | |
| Emerald | $193.11 |
Survival Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $167.96 | |
| Phase 2 | $195.92 | |
| Phase 3 | $166.13 | |
| Phase 4 | $173.00 | |
| Ruby | $445.00 | |
| Sapphire | $307.42 | |
| Black Pearl | $210.00 |
Gut Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $145.21 | |
| Phase 1 | $118.17 | |
| Phase 2 | $163.01 | |
| Phase 2 | $136.12 | |
| Phase 3 | $142.56 | |
| Phase 3 | $113.29 | |
| Phase 4 | $143.28 | |
| Phase 4 | $115.45 | |
| Ruby | $437.81 | |
| Sapphire | $286.51 | |
| Black Pearl | $138.96 | |
| Emerald | $419.57 |
Navaja Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $110.21 | |
| Phase 2 | $120.00 | |
| Phase 3 | $107.09 | |
| Phase 4 | $104.87 | |
| Ruby | $266.07 | |
| Sapphire | $186.68 | |
| Black Pearl | $161.89 |
Glock-18 Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | $70.75 | |
| Phase 2 | $72.61 | |
| Phase 3 | $70.90 | |
| Phase 4 | $67.49 | |
| Emerald | $204.17 |
Frequently Asked Questions
What are Doppler phases in CS2?
Doppler is a knife finish that ships as several separate paint kits, one per phase, and the kit you get is decided at unboxing. Phase 1-4 are the standard blue/purple mixes, while Ruby (red), Sapphire (blue), and Black Pearl are the rare premium rolls. Gamma Doppler has its own Phase 1-4 in green tones plus the rare Emerald.
How do I check which phase a Doppler is?
The phase is not shown in the item name on the Steam Market — it is set by the item's paint index, the paint-kit ID an inspect link returns. That is a different field from the 0-999 paint seed (pattern index), which does not affect the phase. Marketplaces like the ones we link display the phase directly; on Steam you read it from the paint index or by inspecting the item.
Which Doppler phase is most expensive?
Among standard phases, Phase 2 (most pink) usually leads and Phase 3 trails. The premium phases sit far above all four: Sapphire and Ruby typically trade at several times a standard phase, with Black Pearl between them depending on the knife.
Can a Doppler phase change with float?
No — the phase is fixed by the paint index forever. Float only affects wear, and Dopplers only exist in Factory New and Minimal Wear, so even that range is narrow.
What is the difference between Doppler and Gamma Doppler?
They're separate finishes: Doppler runs blue/purple/pink with Ruby, Sapphire, and Black Pearl as rare phases; Gamma Doppler runs green/teal with Emerald as its rare phase. Which knives can have which finish depends on the case generation they drop from.