The knives that were once most wanted in the entire Counter-Strike franchise have been revitalised by Counter-Strike 2. Since patterns have played a significant role in determining price, rarity, and status, collectors no longer limit their views to simple finishes. 

They, instead, pursue perfect gems, max fades, deep webs, and flawless colour combinations that have the power to elevate a regular knife to a one-of-a-million kind level. So, what you see here are the rarest knives in CS2, with the inclusion of the legendary sapphires, webs, emeralds, and gems that are the main features of the high-end trading ​‍​‌‍​‍‌​‍​‌‍​‍‌scene.

1.​‍​‌‍​‍‌​‍​‌‍​‍‌ Butterfly Knife Doppler Sapphire

With the Butterfly Knife still being one of the top knives in the whole game, just because of its animations and hype, getting a proper Doppler Sapphire is an entirely different story. Its single blue tone and mirror-like glow make it one of the cleanest gems ever released. Since the Butterfly model moves so smoothly, the blue reflection is becoming even more vivid, which is why collectors are willing to pay exorbitant sums for any Sapphire pattern that comes closest to full coverage.

Moreover, the rarity of this version is increased by the way Doppler phases operate. In most cases, the Butterfly Doppler will be in one of the typical phases, such as Phase 1, Phase 2, Phase 3, or Phase 4, each of which features mixed colour blends. Only a very tiny fraction of all Doppler drops are converted into pure gems like Sapphire, Ruby, or Black Pearl. Since Sapphire is the cleanest and most visually uniform of all phases, the percentage chance of getting one is very, very low. This phase organisation is what causes the huge rarity difference between ordinary Dopplers and a genuine Butterfly Sapphire, thus making it a prestige item for the top-tier ​‍​‌‍​‍‌​‍​‌‍​‍‌collectors.

2.​‍​‌‍​‍‌​‍​‌‍​‍‌ Karambit Blue Gem

A flawless Blue Gem is what every CS2 trader dreams of having. In general, there are numerous Karambit variants with noticeable surface defects; thus, the cleanest ones are almost legendary. 

A clean blue tip, along with a solid back panel, can make this knife not only a high-tier item but also a rare collector’s piece worth figures. The twisting, curved blade makes the blue colour more vibrant, and since the pattern is sporadic, it remains one of the rarest finishes across all skins.

3.​‍​‌‍​‍‌​‍​‌‍​‍‌ M9 Bayonet Crimson Web

The Crimson Web fabric pattern has always had the hallmarks of a high-end item, but the M9 Bayonet with the three-web layout is something different altogether. 

The M9 is a big and flat model, which makes the webbing stand out more than on other knives. An absolutely perfect web pattern at a low wear level is tough to find, since most Crimson Web skins are not perfectly aligned. The mixture of the dark red and the black webbing makes this knife a very familiar one at first ​‍​‌‍​‍‌​‍​‌‍​‍‌glance.

4.​‍​‌‍​‍‌​‍​‌‍​‍‌ Talon Knife Doppler Ruby

The Talon Knife Doppler Ruby is an extremely sharp, aggressive highlight of the Talon Knife design. The red colour and gem-like texture make it one of the most sought-after Doppler colourways. 

The rarity of Ruby patterns is much higher than that of lower-tier phases, so the price hikes are significant. The majority of players think the Talon Ruby singlehanded is the greatest in any serious collection.

5. Skeleton Knife Fade

The Skeleton Knife Fade is one of the rarest on the list because collectors want the highest fade percentage. Only a very tiny fraction of patterns can be considered “full fade”, and of those, only a handful have smooth colour transitions over the entire blade. 

By showing the Fade effect through an open handle design, the style looks very modern and futuristic, and since the pattern is minimal, it remains highly ​‍​‌‍​‍‌​‍​‌‍​‍‌valuable.

6.​‍​‌‍​‍‌​‍​‌‍​‍‌ M9 Bayonet Gamma Doppler Sapphire

Among the Gamma Doppler variations, the Sapphire is by far the most desirable on the M9 model. The intense colour, neat gradient, and ample blade area make it the ideal surface for blue light reflection. An absolutely perfect Sapphire phase is so rare that M9 knives often have fewer demands due to their size.

7. Talon Knife Blue Gem

Most people are aware of the Karambit Blue Gem, but hardly anyone knows that the Talon Knife Blue Gem is just as rare. Ideal blue surfaces on a Talon are almost impossible to achieve because the curved top and small blade area usually disrupt the colour transition. When a Talon pattern is close to being entirely blue, the collectors regard it almost as a classic Karambit ​‍​‌‍​‍‌​‍​‌‍​‍‌gem.

8.​‍​‌‍​‍‌​‍​‌‍​‍‌ Karambit Gamma Doppler Emerald

One of the most CS2 rarities is still the Emerald patterns. Thanks to the Karambit’s curved blade, the green glow is even more spectacular, so the Emerald version is definitely one of the best out of the whole series. 

The combination of the colour and the extreme rarity of the Gamma Doppler Emerald phase is why demand is very high among veteran collectors seeking a unique piece that is both flashy and timeless.

9. Talon Knife Doppler Sapphire

Rarely do sapphires get as much attention as Rubies. The Talon Knife Doppler Sapphire is lit by a cobalt blue light that seems to permeate the whole blade. 

The finish on the closest hook blade is one of the most beautiful Doppler variants ever; the colour with the signature talo hook tip makes it the most attractive Doppler variant ever. This is the main reason gamers often rank this as the number one Talon pattern: the colour looks so smooth and solid.

10.​‍​‌‍​‍‌​‍​‌‍​‍‌ Karambit Doppler Sapphire

A Karambit Doppler Sapphire is one of the best-known items from the legendary series, and for a good reason. The sharp edge of the blade matches the flowing blue perfectly, and collectors are always looking for clean, even patterns. 

While the Butterfly Sapphire is eye-catching, the Karambit one is still the reference for sapphire knives in CS2. Real all blue ones hardly ever go out of sight, and when they do, the price shows their rarity.

A Note on Alternative Gems

Besides the standard gems and webs, some exceptionally valuable niche patterns can be found as well. The stiletto urban masked white gem, stiletto white gem, and white gem stiletto patterns are the best illustrations of this. 

They depend on pure white patches rather than colour, producing a “diamond shine” effect that makes them the closest thing to a CS2 diamond gem. Only a tiny proportion of Stiletto cases can create a white pattern that is clean enough to be considered a true gem, which is the reason these knives are undiscovered jewels in the CS2 trading ​‍​‌‍​‍‌​‍​‌‍​‍‌world.

FAQ

Where​‍​‌‍​‍‌​‍​‌‍​‍‌ can I get my hands on CS2 knives?

CS2 knives are available for purchase on Steam and on trusted third-party markets. The trading platforms are preferred by many players simply because prices are usually lower and selection is more extensive. In general, collectors turn to Tradeit for quick deposits, secure trades, and a vast catalogue of rare knife patterns.

What makes a knife pattern so incredibly valuable?

It is the random pattern generation that creates rarity. Only a tiny percentage of patterns can be categorised as sapphires, rubies, emeralds, webs, or gems. What collectors do is pay a higher price for knives with perfect colour coverage, clean edges, and high visual consistency.

What factors determine the value of a rare knife?

Several factors, including wear level, pattern placement, market availability, community demand, and the popularity of the knife model, influence the value. The price can be raised or dropped considerably by even minor differences in the ​‍​‌‍​‍‌​‍​‌‍​‍‌pattern.