Complete CS2 Doppler Phases Guide: Prices, Rarity & Patterns

Doppler knives are some of the most desirable skins in CS2, with their patterns that change color depending on the angle. This guide covers all 7 phases, their visual differences, rarity, and current market values.

What are Doppler Phases?

Doppler is a knife finish introduced in the Chroma Case. Each knife receives a pattern based on a larger digital image - where the knife "lands" on this image determines its phase.

There are 7 variations in total:

• 4 standard phases (Phase 1, 2, 3, 4)
• 3 rare variations (Ruby, Sapphire, Black Pearl)

Quick Reference Table

The 4 Standard Phases

Phase 1

• Colors: Dark blue and light purple with black accents
• Visual: Dark base with blue/purple reflections
• Average price: $200 - $3,200 (depending on knife)
• Popularity: Common, more subtle visual

Phase 2

• Colors: Vibrant pink and purple dominant
• Visual: Very colorful and eye-catching
• Average price: $250 - $4,000
• Popularity: Most popular among standard phases
• Tip: Pairs perfectly with Vice gloves

Phase 3

• Colors: Mix of green, dark blue, and black
• Visual: More "cold" and mysterious tone
• Average price: $200 - $2,400
• Popularity: Less desired, less vibrant colors
• Fun fact: Looks much better in CS2 due to new lighting

Phase 4

• Colors: Bright blue predominant with little black
• Visual: Similar to Sapphire but with dark elements
• Average price: $250 - $3,500
• Popularity: Second most popular after Phase 2
• Tip: Great value for those wanting a blue look

The 3 Rare Gems

Ruby 💎

• Color: Completely uniform red, like a ruby
• Rarity: ~2% chance when dropping Doppler
• Prices by knife:

- Gut Knife: $500 - $800 - Flip Knife: $900 - $1,500 - Bayonet: $1,500 - $2,500 - M9 Bayonet: $3,000 - $5,000 - Karambit: $4,000 - $8,000 - Butterfly Knife: $8,000 - $15,000

• Pairs with: Crimson Kimono gloves, Driver Gloves Crimson Weave

Sapphire 💎

• Color: Deep uniform blue with purple reflections, like a sapphire
• Rarity: ~2% chance when dropping Doppler
• Prices by knife:

- Gut Knife: $600 - $1,000 - Flip Knife: $1,200 - $2,000 - Bayonet: $2,000 - $3,500 - M9 Bayonet: $4,000 - $7,000 - Karambit: $5,000 - $10,000 - Butterfly Knife: $15,000 - $26,000

• Pairs with: Pandora's Box gloves, Sport Gloves Amphibious
• Status: Most expensive and desired gem

Black Pearl 💎

• Color: Very dark purple, almost black, with subtle iridescence
• Rarity: ~1% chance when dropping Doppler (THE RAREST)
• Prices by knife:

- Gut Knife: $600 - $1,100 - Flip Knife: $1,000 - $2,000 - Bayonet: $2,500 - $5,000 - M9 Bayonet: $5,000 - $10,000 - Karambit: $6,000 - $12,000 - Butterfly Knife: $10,000 - $20,000

• Fun fact: Despite being rarer, less valued than Ruby/Sapphire for being more "subtle"
• CS2 Visual: Much improved with new engine - colors more visible

Drop Probabilities

To understand the real rarity:

• Chance to drop a knife: ~0.26%
• Chance to be Doppler: ~16.67% (1 in 6 finishes)
• Overall Doppler chance: ~0.043%
• Chance of Ruby or Sapphire: ~0.00086% each
• Chance of Black Pearl: ~0.00043%

Knives Available with Doppler

Doppler finish is available on:

• Bayonet, Butterfly Knife, Falchion Knife, Flip Knife, Gut Knife
• Huntsman Knife, Karambit, M9 Bayonet
• Navaja Knife, Shadow Daggers, Talon Knife
• Ursus Knife, Bowie Knife, Stiletto Knife
• Paracord Knife, Survival Knife, Nomad Knife
• Skeleton Knife, Classic Knife, Kukri Knife

Float Value in Dopplers

Dopplers only exist in Factory New (0.00 - 0.08). There are no Minimal Wear or lower Dopplers.

Float Impact:

• 0.00x - 0.01: 10-20% premium (cleaner)
• 0.01 - 0.03: Standard, no significant premium/discount
• 0.03 - 0.06: May have small discount
• 0.06 - 0.08: 5-10% discount (more scratched)

For Sapphire/Ruby/Black Pearl, a low float (<0.01) can add thousands of dollars to the value.

How to Identify Your Phase

• By color:

- Very pink/purple = Phase 2 - Very blue = Phase 4 or Sapphire - Green/dark blue = Phase 3 - Black with blue = Phase 1 - Pure red = Ruby - Pure blue = Sapphire - Very dark purple = Black Pearl

• Using websites:

- CSFloat shows the phase automatically - Use the Finish Catalog number: - #415 = Ruby - #416 = Sapphire - #417 = Black Pearl - #418 = Phase 1 - #419 = Phase 2 - #420 = Phase 3 - #421 = Phase 4

Pro Players Using Dopplers

• ZywOo: Ruby M9 Bayonet
• jL: Sapphire Butterfly Knife
• Twistzz: Sapphire M9 Bayonet
• ohnePixel: Black Pearl Butterfly and Talon Knives

Buying Tips

✅ Do:

• Check the phase BEFORE buying (don't trust just the title)
• For expensive gems, inspect the float
• Use platforms that show the phase clearly
• Compare prices across multiple marketplaces

❌ Don't:

• Buy "Sapphire" without confirming it's #416
• Pay Phase 2 price for Phase 3 (easy to confuse)
• Trade outside platforms with escrow for expensive items

Doppler Investment

Ruby and Sapphire:

• ✅ Excellent for long term
• ✅ High constant demand
• ✅ Easy to resell

Black Pearl:

• ✅ Rarer, appreciation potential
• ⚠️ Lower demand than Ruby/Sapphire

Standard Phases:

• Phase 2 and 4: Good for short term
• Phase 1 and 3: Cheaper, lower liquidity

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*Updated February 2026