The Most Expensive Knives in CS2 (2026)

The most expensive knife in CS2 is the Factory New Karambit | Case Hardened with pattern #387, an almost fully blue "Blue Gem" valued at $1.5–2 million, even though it has never been sold publicly. Among knives you can actually buy today, the Butterfly Knife | Doppler Black Pearl (Factory New) leads at around $11,790, and this guide ranks the ten priciest knives on the market with their current prices. 

At a glance: 

What Is the Most Expensive CS2 Knife Ever?

The Karambit | Case Hardened #387 in Factory New is the most valuable knife in Counter-Strike history. Case Hardened blades usually mix gold, purple and blue, and the pattern index (0 to 1000) decides the mix. Pattern #387 on a Karambit gives an almost entirely blue blade with no gold patches, which is exactly what "Blue Gem" collectors chase. It is often called the only Factory New copy of this pattern. 

Its price is an estimate, not a receipt. In 2021 its owner, a Chinese collector, turned down a reported $1.5 million offer as too low, and current estimates sit between $1.5 and $2 million. No public sale has ever been confirmed, so treat any "sold for $1.5M" headline with caution. For the full story of how blue coverage is judged, see our Karambit Case Hardened blue gem patterns guide. 

Not in the knife category, but in the same league: the AK-47 | Case Hardened #661 is the famous rifle equivalent. 

Most Expensive CS2 Knives You Can Buy Right Now (2026 Prices)

Pattern-unique pieces like #387 never reach the open market, so here are the priciest knives that are actually listed for sale. Prices are the lowest Factory New listing on Skin.Land (non-StatTrak), rounded to tens. 

Notice a pattern? The whole top 10 is Butterfly, Karambit and M9 Bayonet in Doppler "gem" phases. Want to know how Ruby, Sapphire, Black Pearl and Emerald differ from regular phases? Our Doppler phases guide and Gamma Doppler phases guide break them down. 

Butterfly Knife | Doppler Black Pearl – about $11,790

This right here is the current king of the tradeable knife market. Black Pearl is the darkest Doppler phase: a deep, almost black blade with purple and blue flashes that change with the light. Put it on the Butterfly, the flashiest inspect animation in the game, and you get the priciest knife you can simply buy. Only a couple of Factory New copies were listed when we checked, which is part of the reason it costs so much. 

Butterfly Knife | Doppler Ruby – about $10,930

A solid, glossy red blade on the Butterfly. Ruby is the most liquid of the gem phases at this price level, so you can usually find more than one copy for sale. If you're building a red loadout, nothing else comes close in pure presence. 

Karambit | Doppler Black Pearl – about $8,540

The Black Pearl phase on the curved blade. Karambit fans get the Black Pearl look for about $3,000 less than the Butterfly, and supply is just as thin. 

M9 Bayonet | Doppler Ruby – about $8,280

The straight-blade Ruby has been climbing steadily this year: its lowest Factory New listing on Skin.Land rose about 7% between early June and the end of September. It now costs more than the Karambit Ruby. 

Butterfly Knife | Gamma Doppler Emerald – about $8,030

A vivid, all-green blade that you can spot across the map. Emerald is the gem phase of Gamma Doppler, and on the Butterfly it's one of the most recognizable knives in the game. It is also the easiest top-10 knife to find: dozens of Factory New copies were listed when we checked. 

Karambit | Doppler Ruby – about $7,650

The curved Ruby is a time-tested collector piece, and its price climbed about 11% since June. If you want a red Karambit but not at this budget, our red Karambit skins guide has cheaper options. 

M9 Bayonet | Doppler Black Pearl – about $7,650

The third Black Pearl in the top 10. Few copies are listed at any time, so the price can jump when one sells. 

Karambit | Gamma Doppler Emerald – about $7,380

Green on the curved blade. It went the other way from the Rubies and slipped about 9% since June, which makes it one of the better-value gem knives right now. 

Butterfly Knife | Doppler Sapphire – about $6,970

A clean, deep blue blade and the classic "blue loadout" centerpiece. Sapphire used to be the most expensive gem phase, but today it sits behind Ruby and Black Pearl on the Butterfly. 

M9 Bayonet | Gamma Doppler Emerald – about $6,870

Closing the top 10 is the green M9. It lost about 7% since June. 

Why Are CS2 Knives So Expensive?

Knives drop from cases as rare special items, with odds of roughly 0.26% per case. That means hundreds of cases on average for a single knife, and most of those knives are cheap finishes. On top of that, several properties decide how much a specific knife is worth: 

A knife hits the top of the market only when all of these line up: a popular model, a rare phase or pattern, and a low float. 

How Knife Prices Moved in 2026

Comparing the lowest Factory New listings on Skin.Land from June 2 and September 30, 2026: 

Prices here are not rounded, so the percentages add up. All three Doppler Rubies got more expensive, while the Butterfly Black Pearl, the Emeralds and many mid-range premium knives got cheaper. That fits what we saw across the whole catalog from late August to late September: premium knife models held their value better than budget ones. Knife prices change every day, so check the current listing before you buy. 

Premium-Looking Knives for Less

You don't need five figures for a knife that turns heads. These Factory New picks keep the famous finishes at a fraction of the top-10 prices: 

• Karambit | Case Hardened (FN) – about $1,680. The same finish as #387, just with a regular pattern. Hunting for a good blue share? Start with the cheapest Karambits guide.

• Butterfly Knife | Lore (FN) – about $1,960. A Nordic knotwork design inspired by the AWP | Dragon Lore.

• Butterfly Knife | Fade (FN) – about $2,220. A pink-to-yellow gradient and one of the most traded premium knives, so it's easy to buy and sell.

• Talon Knife | Doppler Sapphire (FN) – about $1,570. A true gem phase for under $2,000.

• Karambit | Doppler Sapphire (FN) – about $4,840 and M9 Bayonet | Doppler Sapphire (FN) – about $4,360. Sapphire on the big-name models for well under the Butterfly's price.

Should You Invest in Expensive CS2 Knives?

High-end knives can hold value well, but they are not a guaranteed win. A few things to keep in mind: 

• Selling takes time. The fewer copies exist, the fewer buyers there are at that price. Selling through a marketplace like Skin.Land is faster and safer than a private deal.

• Don't put everything into one knife. Mix long-term holds with more liquid items. Our list of the best CS2 skins to invest in is a good place to compare options.

• Watch updates and big events. New cases, trade-up changes and Majors can move knife prices quickly, in either direction.

Ready to pick your blade? Browse all knives on the Skin.Land market. 

FAQ

What is the most expensive knife in CS2?

The most expensive CS2 knife is the Factory New Karambit | Case Hardened with pattern #387, known as the Blue Gem Karambit. It's valued at $1.5–2 million based on rejected offers and collector estimates. It has never been sold publicly, and its owner reportedly turned down a $1.5 million offer in 2021. 

What is the most expensive knife you can actually buy?

Among knives listed for sale, the Butterfly Knife | Doppler Black Pearl (Factory New) is the most expensive at about $11,790 on Skin.Land. It's followed by the Butterfly Knife | Doppler Ruby (about $10,930) and the Karambit | Doppler Black Pearl (about $8,540). Only a couple of Black Pearl copies are usually listed. 

Has the #387 Karambit ever been sold?

No public sale of the #387 Karambit has been confirmed. The $1.5 million figure comes from an offer its owner rejected in 2021, and current estimates run from $1.5 to $2 million. Any claim that it "sold for $1.5M" refers to that reported offer, not a completed deal. 

Why are Doppler knives so expensive?

Doppler and Gamma Doppler knives come in phases, and the rare "gem" phases (Ruby, Sapphire, Black Pearl and Emerald) show up far less often than regular Phase 1–4 blades. Put a gem phase on a popular model like the Butterfly, Karambit or M9 Bayonet, and you get the priciest knives on the market. 

What's the cheapest way to get a premium-looking knife?

Pick a famous finish on a less expensive model, or a regular pattern instead of a gem. A Karambit | Case Hardened (FN) costs about $1,680, a Butterfly Knife | Lore (FN) about $1,960 and a Talon | Doppler Sapphire (FN) about $1,570. Lower wears like Field-Tested cut the price further.