Doppler Phases

Phase 1–4, Ruby, Sapphire, Black Pearl and Emerald — why identical listings differ by thousands of euros.

Doppler and Gamma Doppler finishes come in distinct phases — variants with different colour compositions that share one market listing name. Two "identical" Doppler knives can differ in price by a factor of ten because of their phase.

The phases

  • Doppler: Phase 1 (balanced dark/pink), Phase 2 (pink-dominant), Phase 3 (green-tinted dark), Phase 4 (blue-dominant) — plus the rare gems: Ruby (solid red), Sapphire (solid blue) and Black Pearl (deep iridescent dark).
  • Gamma Doppler: Phase 1–4 in green tones, plus the Emerald (solid green) as its gem.

Gems trade at large multiples of the regular phases; among the standard phases, Phase 2 (Doppler) is typically the most sought after for its pink playside.

The catch: the listing does not show the phase

Steam market names do not include the phase — "★ Karambit | Doppler (Factory New)" covers all variants. The phase is determined by the pattern index and is visible from the item's icon. Skinventory detects phases automatically on import, and you can check any inventory with the free Doppler Phase Checker.

Phase pricing on Skinventory

Because public price feeds rarely separate phases, Skinventory prices phases from the Doppler floor with calibrated premiums and labels them as estimates. Gems with exceptional patterns trade above any estimate.

Frequently asked questions

What are Doppler phases in CS2?

Phases are colour variants of the Doppler and Gamma Doppler finishes. Doppler has Phase 1–4 plus Ruby, Sapphire and Black Pearl; Gamma Doppler has Phase 1–4 plus Emerald.

Which Doppler phase is the most expensive?

Sapphire and Ruby are typically the most expensive Doppler variants, followed by Black Pearl. Among regular phases, Phase 2 usually commands the highest premium.

How do I check my knife's Doppler phase?

The phase isn't in the item name — it's determined by the pattern. Skinventory's free Doppler Phase Checker reads it from your inventory automatically.

Skinventory · Glossary