CS2 Knife Guide
CS2 Doppler Phases Explained
Every Doppler and Gamma Doppler phase — what it looks like, how the pattern index decides 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 by the skin's pattern index the moment it 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.
Butterfly Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Butterfly Knife | Doppler - Phase 1 | $2,399 |
| Phase 1 | Butterfly Knife | Gamma Doppler - Phase 1 | $2,032 |
| Phase 2 | Butterfly Knife | Doppler - Phase 2 | $4,212 |
| Phase 2 | Butterfly Knife | Gamma Doppler - Phase 2 | $2,483 |
| Phase 3 | Butterfly Knife | Doppler - Phase 3 | $2,194 |
| Phase 3 | Butterfly Knife | Gamma Doppler - Phase 3 | $1,943 |
| Phase 4 | Butterfly Knife | Doppler - Phase 4 | $2,882 |
| Phase 4 | Butterfly Knife | Gamma Doppler - Phase 4 | $1,944 |
| Ruby | Butterfly Knife | Doppler - Ruby | $9,377 |
| Sapphire | Butterfly Knife | Doppler - Sapphire | $6,355 |
| Black Pearl | Butterfly Knife | Doppler - Black Pearl | $2,398 |
| Emerald | Butterfly Knife | Gamma Doppler - Emerald | $7,685 |
M9 Bayonet Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | M9 Bayonet | Gamma Doppler - Phase 1 | $1,308 |
| Phase 1 | M9 Bayonet | Doppler - Phase 1 | $995.45 |
| Phase 2 | M9 Bayonet | Gamma Doppler - Phase 2 | $1,677 |
| Phase 2 | M9 Bayonet | Doppler - Phase 2 | $1,330 |
| Phase 3 | M9 Bayonet | Gamma Doppler - Phase 3 | $1,280 |
| Phase 3 | M9 Bayonet | Doppler - Phase 3 | $982.61 |
| Phase 4 | M9 Bayonet | Gamma Doppler - Phase 4 | $1,300 |
| Phase 4 | M9 Bayonet | Doppler - Phase 4 | $1,116 |
| Ruby | M9 Bayonet | Doppler - Ruby | $7,049 |
| Sapphire | M9 Bayonet | Doppler - Sapphire | $3,990 |
| Black Pearl | M9 Bayonet | Doppler - Black Pearl | $8,703 |
| Emerald | M9 Bayonet | Gamma Doppler - Emerald | $6,931 |
Karambit Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Karambit | Gamma Doppler - Phase 1 | $1,988 |
| Phase 1 | Karambit | Doppler - Phase 1 | $1,341 |
| Phase 2 | Karambit | Gamma Doppler - Phase 2 | $2,438 |
| Phase 2 | Karambit | Doppler - Phase 2 | $1,905 |
| Phase 3 | Karambit | Gamma Doppler - Phase 3 | $1,859 |
| Phase 3 | Karambit | Doppler - Phase 3 | $1,342 |
| Phase 4 | Karambit | Gamma Doppler - Phase 4 | $1,803 |
| Phase 4 | Karambit | Doppler - Phase 4 | $1,389 |
| Ruby | Karambit | Doppler - Ruby | $7,783 |
| Sapphire | Karambit | Doppler - Sapphire | $4,433 |
| Black Pearl | Karambit | Doppler - Black Pearl | $1,404 |
| Emerald | Karambit | Gamma Doppler - Emerald | $7,389 |
Talon Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Talon Knife | Doppler - Phase 1 | $847.24 |
| Phase 2 | Talon Knife | Doppler - Phase 2 | $1,027 |
| Phase 3 | Talon Knife | Doppler - Phase 3 | $820.19 |
| Phase 4 | Talon Knife | Doppler - Phase 4 | $893.35 |
| Ruby | Talon Knife | Doppler - Ruby | $2,660 |
| Sapphire | Talon Knife | Doppler - Sapphire | $1,770 |
| Black Pearl | Talon Knife | Doppler - Black Pearl | $885.22 |
Skeleton Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Skeleton Knife | Doppler - Phase 1 | $648.47 |
| Phase 2 | Skeleton Knife | Doppler - Phase 2 | $842.21 |
| Phase 3 | Skeleton Knife | Doppler - Phase 3 | $635.10 |
| Phase 4 | Skeleton Knife | Doppler - Phase 4 | $694.58 |
| Ruby | Skeleton Knife | Doppler - Ruby | $2,498 |
| Sapphire | Skeleton Knife | Doppler - Sapphire | $1,518 |
| Black Pearl | Skeleton Knife | Doppler - Black Pearl | $664.94 |
Stiletto Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Stiletto Knife | Doppler - Phase 1 | $485.91 |
| Phase 2 | Stiletto Knife | Doppler - Phase 2 | $623.64 |
| Phase 3 | Stiletto Knife | Doppler - Phase 3 | $469.95 |
| Phase 4 | Stiletto Knife | Doppler - Phase 4 | $512.81 |
| Ruby | Stiletto Knife | Doppler - Ruby | $1,884 |
| Sapphire | Stiletto Knife | Doppler - Sapphire | $1,121 |
| Black Pearl | Stiletto Knife | Doppler - Black Pearl | $1,851 |
Bayonet Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Bayonet | Gamma Doppler - Phase 1 | $539.41 |
| Phase 1 | Bayonet | Doppler - Phase 1 | $421.18 |
| Phase 2 | Bayonet | Gamma Doppler - Phase 2 | $646.40 |
| Phase 2 | Bayonet | Doppler - Phase 2 | $524.63 |
| Phase 3 | Bayonet | Gamma Doppler - Phase 3 | $517.16 |
| Phase 3 | Bayonet | Doppler - Phase 3 | $415.19 |
| Phase 4 | Bayonet | Gamma Doppler - Phase 4 | $516.72 |
| Phase 4 | Bayonet | Doppler - Phase 4 | $427.83 |
| Ruby | Bayonet | Doppler - Ruby | $1,846 |
| Sapphire | Bayonet | Doppler - Sapphire | $1,269 |
| Black Pearl | Bayonet | Doppler - Black Pearl | $502.46 |
| Emerald | Bayonet | Gamma Doppler - Emerald | $1,757 |
Flip Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Flip Knife | Gamma Doppler - Phase 1 | $429.83 |
| Phase 1 | Flip Knife | Doppler - Phase 1 | $339.90 |
| Phase 2 | Flip Knife | Gamma Doppler - Phase 2 | $506.30 |
| Phase 2 | Flip Knife | Doppler - Phase 2 | $426.80 |
| Phase 3 | Flip Knife | Gamma Doppler - Phase 3 | $431.52 |
| Phase 3 | Flip Knife | Doppler - Phase 3 | $338.42 |
| Phase 4 | Flip Knife | Gamma Doppler - Phase 4 | $431.52 |
| Phase 4 | Flip Knife | Doppler - Phase 4 | $347.29 |
| Ruby | Flip Knife | Doppler - Ruby | $1,478 |
| Sapphire | Flip Knife | Doppler - Sapphire | $989.92 |
| Black Pearl | Flip Knife | Doppler - Black Pearl | $1,744 |
| Emerald | Flip Knife | Gamma Doppler - Emerald | $1,419 |
Nomad Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Nomad Knife | Doppler - Phase 1 | $391.48 |
| Phase 2 | Nomad Knife | Doppler - Phase 2 | $454.14 |
| Phase 3 | Nomad Knife | Doppler - Phase 3 | $397.24 |
| Phase 4 | Nomad Knife | Doppler - Phase 4 | $424.43 |
| Ruby | Nomad Knife | Doppler - Ruby | $1,227 |
| Sapphire | Nomad Knife | Doppler - Sapphire | $827.35 |
| Black Pearl | Nomad Knife | Doppler - Black Pearl | $1,080 |
Falchion Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Falchion Knife | Doppler - Phase 1 | $295.42 |
| Phase 1 | Falchion Knife | Gamma Doppler - Phase 1 | $228.25 |
| Phase 2 | Falchion Knife | Doppler - Phase 2 | $338.42 |
| Phase 2 | Falchion Knife | Gamma Doppler - Phase 2 | $244.43 |
| Phase 3 | Falchion Knife | Doppler - Phase 3 | $297.63 |
| Phase 3 | Falchion Knife | Gamma Doppler - Phase 3 | $221.67 |
| Phase 4 | Falchion Knife | Doppler - Phase 4 | $308.86 |
| Phase 4 | Falchion Knife | Gamma Doppler - Phase 4 | $224.63 |
| Ruby | Falchion Knife | Doppler - Ruby | $738.69 |
| Sapphire | Falchion Knife | Doppler - Sapphire | $509.85 |
| Black Pearl | Falchion Knife | Doppler - Black Pearl | $1,197 |
| Emerald | Falchion Knife | Gamma Doppler - Emerald | $554.18 |
Huntsman Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Huntsman Knife | Doppler - Phase 1 | $294.01 |
| Phase 1 | Huntsman Knife | Gamma Doppler - Phase 1 | $228.92 |
| Phase 2 | Huntsman Knife | Doppler - Phase 2 | $375.22 |
| Phase 2 | Huntsman Knife | Gamma Doppler - Phase 2 | $248.20 |
| Phase 3 | Huntsman Knife | Doppler - Phase 3 | $294.01 |
| Phase 3 | Huntsman Knife | Gamma Doppler - Phase 3 | $228.77 |
| Phase 4 | Huntsman Knife | Doppler - Phase 4 | $328.08 |
| Phase 4 | Huntsman Knife | Gamma Doppler - Phase 4 | $230.54 |
| Ruby | Huntsman Knife | Doppler - Ruby | $895.56 |
| Sapphire | Huntsman Knife | Doppler - Sapphire | $605.91 |
| Black Pearl | Huntsman Knife | Doppler - Black Pearl | $1,182 |
| Emerald | Huntsman Knife | Gamma Doppler - Emerald | $650.24 |
Bowie Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Bowie Knife | Doppler - Phase 1 | $251.23 |
| Phase 1 | Bowie Knife | Gamma Doppler - Phase 1 | $199.51 |
| Phase 2 | Bowie Knife | Doppler - Phase 2 | $287.61 |
| Phase 2 | Bowie Knife | Gamma Doppler - Phase 2 | $209.85 |
| Phase 3 | Bowie Knife | Doppler - Phase 3 | $242.36 |
| Phase 3 | Bowie Knife | Gamma Doppler - Phase 3 | $200.76 |
| Phase 4 | Bowie Knife | Gamma Doppler - Phase 4 | $199.88 |
| Phase 4 | Bowie Knife | Doppler - Phase 4 | $287.58 |
| Ruby | Bowie Knife | Doppler - Ruby | $738.84 |
| Sapphire | Bowie Knife | Doppler - Sapphire | $494.33 |
| Black Pearl | Bowie Knife | Doppler - Black Pearl | $1,107 |
| Emerald | Bowie Knife | Gamma Doppler - Emerald | $511.33 |
Ursus Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Ursus Knife | Doppler - Phase 1 | $255.22 |
| Phase 2 | Ursus Knife | Doppler - Phase 2 | $291.13 |
| Phase 3 | Ursus Knife | Doppler - Phase 3 | $245.32 |
| Phase 4 | Ursus Knife | Doppler - Phase 4 | $256.40 |
| Ruby | Ursus Knife | Doppler - Ruby | $775.86 |
| Sapphire | Ursus Knife | Doppler - Sapphire | $527.58 |
| Black Pearl | Ursus Knife | Doppler - Black Pearl | $834.90 |
Shadow Daggers Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Shadow Daggers | Doppler - Phase 1 | $130.49 |
| Phase 1 | Shadow Daggers | Gamma Doppler - Phase 1 | $107.88 |
| Phase 2 | Shadow Daggers | Doppler - Phase 2 | $194.26 |
| Phase 2 | Shadow Daggers | Gamma Doppler - Phase 2 | $106.70 |
| Phase 3 | Shadow Daggers | Doppler - Phase 3 | $131.23 |
| Phase 3 | Shadow Daggers | Gamma Doppler - Phase 3 | $104.93 |
| Phase 4 | Shadow Daggers | Doppler - Phase 4 | $152.20 |
| Phase 4 | Shadow Daggers | Gamma Doppler - Phase 4 | $104.19 |
| Ruby | Shadow Daggers | Doppler - Ruby | $375.37 |
| Sapphire | Shadow Daggers | Doppler - Sapphire | $249.46 |
| Black Pearl | Shadow Daggers | Doppler - Black Pearl | $738.91 |
| Emerald | Shadow Daggers | Gamma Doppler - Emerald | $223.74 |
Paracord Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Paracord Knife | Doppler - Phase 1 | $215.02 |
| Phase 2 | Paracord Knife | Doppler - Phase 2 | $253.30 |
| Phase 3 | Paracord Knife | Doppler - Phase 3 | $208.30 |
| Phase 4 | Paracord Knife | Doppler - Phase 4 | $221.67 |
| Ruby | Paracord Knife | Doppler - Ruby | $600.00 |
| Sapphire | Paracord Knife | Doppler - Sapphire | $426.80 |
| Black Pearl | Paracord Knife | Doppler - Black Pearl | $665.02 |
Gut Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Gut Knife | Gamma Doppler - Phase 1 | $162.25 |
| Phase 1 | Gut Knife | Doppler - Phase 1 | $129.16 |
| Phase 2 | Gut Knife | Gamma Doppler - Phase 2 | $183.97 |
| Phase 2 | Gut Knife | Doppler - Phase 2 | $151.92 |
| Phase 3 | Gut Knife | Gamma Doppler - Phase 3 | $162.27 |
| Phase 3 | Gut Knife | Doppler - Phase 3 | $125.31 |
| Phase 4 | Gut Knife | Gamma Doppler - Phase 4 | $162.54 |
| Phase 4 | Gut Knife | Doppler - Phase 4 | $128.42 |
| Ruby | Gut Knife | Doppler - Ruby | $482.42 |
| Sapphire | Gut Knife | Doppler - Sapphire | $349.51 |
| Black Pearl | Gut Knife | Doppler - Black Pearl | $663.25 |
| Emerald | Gut Knife | Gamma Doppler - Emerald | $460.64 |
Survival Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Survival Knife | Doppler - Phase 1 | $188.13 |
| Phase 2 | Survival Knife | Doppler - Phase 2 | $219.46 |
| Phase 3 | Survival Knife | Doppler - Phase 3 | $194.48 |
| Phase 4 | Survival Knife | Doppler - Phase 4 | $196.40 |
| Ruby | Survival Knife | Doppler - Ruby | $531.87 |
| Sapphire | Survival Knife | Doppler - Sapphire | $347.07 |
| Black Pearl | Survival Knife | Doppler - Black Pearl | $460.00 |
Navaja Knife Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Navaja Knife | Doppler - Phase 1 | $113.50 |
| Phase 2 | Navaja Knife | Doppler - Phase 2 | $133.74 |
| Phase 3 | Navaja Knife | Doppler - Phase 3 | $113.35 |
| Phase 4 | Navaja Knife | Doppler - Phase 4 | $114.30 |
| Ruby | Navaja Knife | Doppler - Ruby | $292.61 |
| Sapphire | Navaja Knife | Doppler - Sapphire | $213.10 |
| Black Pearl | Navaja Knife | Doppler - Black Pearl | $392.36 |
Glock-18 Doppler Prices by Phase
| Phase | Finish | From |
|---|---|---|
| Phase 1 | Glock-18 | Gamma Doppler - Phase 1 | $81.13 |
| Phase 2 | Glock-18 | Gamma Doppler - Phase 2 | $87.41 |
| Phase 3 | Glock-18 | Gamma Doppler - Phase 3 | $79.80 |
| Phase 4 | Glock-18 | Gamma Doppler - Phase 4 | $80.98 |
| Emerald | Glock-18 | Gamma Doppler - Emerald | $214.28 |
Frequently Asked Questions
What are Doppler phases in CS2?
Doppler is a knife finish whose look is set by the skin's pattern index at unboxing. The outcomes are grouped into phases: 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's determined by the pattern index (paint seed). Marketplaces like the ones we link display the phase directly; on Steam you identify it from the pattern 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 pattern 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.