All 7 Doppler phases explained — from standard Phase 1–4 to Ruby, Sapphire and Black Pearl, with prices and how to identify your phase.
| Float Range | Condition | Avg Price | vs Average | Verdict |
|---|---|---|---|---|
| Black Pearl ★ | Ultra rare dark phase | $8,000–15,000 | 10–15x | Ultra Rare |
| Sapphire | Full blue phase | $3,500–6,000 | 5–7x | Special |
| Ruby | Full red phase | $3,000–5,000 | 4–6x | Special |
| Phase 4 | Pink / Purple | $900–1,100 | +20% | Premium |
| Phase 2 | Blue / Purple mix | $700–900 | Base | Standard |
| Phase 1 | Pink | $650–800 | −10% | Standard |
| Phase 3 | Blue | $650–800 | −10% | Standard |
★ Black Pearl is the rarest phase — some have sold for $15,000+. Prices are approximate and vary by float and market. Use our inspect tool to identify the exact phase of any Doppler.
Butterfly Knife | Doppler is one of the most popular and collectible knives in CS2. The Doppler finish creates a galaxy-like pattern with different color phases depending on the pattern seed — and this phase determines price more than any other factor, creating price differences of up to 15x between the rarest and most common versions.
The three special phases sit in an entirely different price bracket from standard phases. Black Pearl is the rarest, featuring a dark metallic appearance with subtle shifting color — some have sold for $10,000–15,000+. Sapphire produces a solid, vibrant blue blade that glows distinctively in-game ($3,500–6,000). Ruby gives a deep solid red finish ($3,000–5,000). Each of these phases occurs with specific pattern seeds that produce nearly 100% single-color coverage, making them immediately recognizable and highly coveted.
Standard phases (1–4) represent the vast majority of Doppler Butterfly Knives in circulation. Phase 2 (blue/purple mix) is generally the most popular standard phase and sets the baseline price at $700–900. Phase 4 (pink/purple) commands a modest 20% premium. Phase 1 (pink) and Phase 3 (blue) are the least popular standard phases and typically trade slightly below Phase 2.
Since Butterfly Knife Doppler only exists in Factory New condition (0.00–0.07), float differences are constrained. However, lower float still produces cleaner, more vibrant colors — particularly noticeable on the special phases. A low float Black Pearl or Sapphire is the ultimate combination. Use our inspect tool to identify the exact phase from the pattern seed and see live market prices instantly.
Paste the inspect link and get exact float, pattern, sticker value and live prices from DMarket, Waxpeer, Skinport and White Market — in seconds.
Inspect Your Skin Free →Go to Steam Market → search Butterfly Knife | Doppler → open any listing you want to analyze.
Right-click the "Inspect in Game ▶" button → select Copy link address.
Paste the link and get float rank, sticker value and live prices instantly.
skinsinspector.com/inspect →