Butterfly Knife Case Hardened: Blue Gem Patterns, Rarity & Market Trends
Butterfly Knife | Case Hardened is a skin that, without exaggeration, millions of players want! This is a legendary skin that captivates and attracts attention not only with its incredible look but also with rare and interesting patterns. Some variations can even cost hundreds of thousands of dollars because the skin changes depending on the pattern!
How to distinguish the most valuable patterns? What is a Blue Gem, and why is it so rare? You will learn all this and more in our article!
Butterfly Knife | Case Hardened – Research Methodology
We’ve put together everything you need to know about the Butterfly Knife | Case Hardened, all in one place. To make this guide genuinely useful, we dug into real market data — tracking trends, checking out what patterns people actually want, and looking at how prices have shifted over time on both the Steam Market and third-party sites.
We also joined discussions on Reddit and in the Steam Community. Thanks to all of this, we were able to put together a full guide to the Butterfly Knife | Case Hardened and its patterns, especially the coveted Blue Gem patterns.
Popularity of Butterfly Knife | Case Hardened
To save your time, in this article, we will specifically examine only the rarest and most visually appealing patterns for the Butterfly Knife | Case Hardened, with particular attention to Blue Gem patterns.
Before we get into the details of the Butterfly Knife | Case Hardened, here’s a quick overview for players who may not know much about it. This famous skin came out on July 1, 2014, with the “Operation Breakout” update and the Operation Breakout Weapon Case.
It caught players’ attention right away, not just because it was a new knife skin, but also because of its cool and unique animation. But what really set it apart was how bright and colorful it was and how it sparkled in the sun. When you see the knife in-game, it catches the light with a stunning mix of shifting colors.
The Rise of the Blue Gem Butterfly Knife
This particular feature quickly became a fan favorite. But over time, players began to notice something interesting: the blue spots on the blade weren’t just random. They were different on every knife. That realization kicked off a craze among collectors who started hunting for knives with the most blue. And it was this very detail that made the skin even more popular and sought-after.
In total, there are 1,000 unique patterns for the Butterfly Knife | Case Hardened, but only six of them qualify as true Blue Gems — the rarest and most expensive variants, thanks to their heavy blue coloring on the blade.
Fun fact: Many countries have banned butterfly knives in real life due to their distinctive opening mechanism and spinning blade, which makes them dangerous not just for others but even for the person using them.
Key Findings into the Rarity & Value of Butterfly Knife Case Hardened
Butterfly Knife | Case Hardened is a very rare and valuable knife that many people like, and it’s easy to understand why. But what exactly draws attention to this knife? The unique inspection animation? Probably not. The interesting color scheme? Yes, but not quite. The most important thing that interests all users is the unique and rare variations called Blue Gem. The six rarest CS2 patterns we mentioned above are exactly what we call Blue Gem patterns
Collectors and regular players are hunting specifically for these patterns because the reward can be worth many times more than what you spend. Collectors and regular players specifically hunt for these patterns because the reward can be worth many times more than what they spend. However, it is quite rare for them to recoup those expenses. Usually, people who hunt for a Blue Gem don’t focus on selling it; instead, they aim to experience the emotions of obtaining one of the rarest knives in the game and adding it to their collection.
Therefore, it is worth summarizing everything we discussed above. Butterfly Knife | Case Hardened is one of the oldest knives in CS2. It has an incredibly large fan base and is a collector’s item for many. Additionally, the Butterfly Knife | Case Hardened features six very rare patterns, known as Blue Gem, due to their distinctive visual appearance.

Rarity of Blue Gem Patterns
In this section, we will examine in more detail all existing patterns for the Butterfly Knife | Case Hardened, and pay special attention to Butterfly Knife | Case Hardened Blue Gem Patterns.
We have already mentioned that there are rare patterns for the Butterfly Knife | Case Hardened, but a small clarification needs to be made: all 1000 available patterns are divided into different levels (tiers). The more blue color on the skin, the higher tier the skin has.
You already know that players call patterns almost completely filled with blue Blue Gems.. These skins belong to the highest tier – Tier 1.
| Tier 1 | 29, 182, 398, 494, 652, 838 |
| Tier 2 | 73, 147, 214, 283, 330, 371, 638, 721, 749, 839, 868, 881, 891, 917, 919 |
| Tier 3 | 61, 72, 74, 92, 108, 112, 130, 194, 248, 256, 282, 306, 335, 358, 407, 411, 424, 458, 457, 488, 499, 510, 522, 618, 629, 664, 694, 702, 703, 720, 776, 782, 798, 803, 809, 811, 853, 858, 902, 913, 924, 928, 964, 965 |
| Tier 4 | 10, 11, 18, 27, 30, 34, 38, 42, 43, 56, 67, 98, 111, 116, 139, 153, 188, 191, 208, 236, 255, 262, 269, 273, 311, 321, 322, 332, 341, 375, 377, 401, 414, 420, 426, 442, 445, 453, 464, 466, 505, 507, 513, 515, 528, 547, 575, 598, 612, 630, 631, 633, 642, 658, 671, 699, 713, 717, 741, 768, 770, 788, 799, 801, 808, 823, 826, 841, 842, 844, 846, 854, 880, 884, 885, 893, 898, 901, 905, 906, 907, 916, 927, 974, 976, 989 |
As you can see, besides Tier 1 patterns, there are also other tiers. The lower the tier, the less rare the pattern is — and naturally, the cheaper it gets. Now, let’s talk prices!
Pricing Insights
The prices of Butterfly Knife | Case Hardened skins are a big and complex topic that can take a long time to unpack, since many different factors affect how they’re formed. We’ll try to explain as briefly but clearly as possible what exactly influences the price of the Butterfly Knife | Case Hardened and what these knives are currently selling for. And of course, we won’t forget about the Butterfly Knife | Case Hardened Blue Gem.
The Impact of Pattern on Pricing
The first thing that affects the price is, of course, the pattern. If you want a knife with a cool look and a lot of blue on it, expect to pay at least $5,000. A Blue Gem simply can’t be cheap — it’s not just about looks, it’s mainly about collectibility and nostalgia for many players.
Wear Condition and Float Values
Another thing that plays a big role in the price of a Butterfly Knife | Case Hardened is its condition. Every skin in the game has a wear level that goes from 0.00, where it looks brand new, to 1.00, where it’s completely worn out. Naturally, skins in good condition are more expensive, and if you combine that with a pattern like a Blue Gem, the price skyrockets. That combo, a Blue Gem in top condition, is extremely rare.
If you’re not very familiar with float values, here’s a quick table to help you understand.
| Factory New | 0.00 – 0.06 |
| Minimal Wear | 0.07 – 0.14 |
| Field-Tested | 0.15 – 0.37 |
| Well-Worn | 0.38 – 0.44 |
| Battle-Scarred | 0.45 – 1.00 |
Market demand is another thing that can greatly influence the price, as there are indeed periods when the price of skins increases. This is especially noticeable before large tournaments, such as a Major.
StatTrak and Price Variation
The last factor that strongly affects the price is the StatTrak counter. Indeed, for many players, this is a crucial factor. Some are willing to pay 20%, 30%, and even 40% more just to see the knife display the number of enemies it has killed.
In general, the price of a regular Butterfly Knife | Case Hardened (without a rare pattern) ranges from $1,000 in BS (Battle-Scarred) quality to $2,000 if the knife has FN (Factory New) quality. The price for variations with a StatTrak counter is 10-15% more expensive than the regular price.
Price Range for Rare Patterns
A similar situation applies to rare patterns of the Butterfly Knife | Case Hardened, but the price here is 5-10 times higher. For example, Tier 1 patterns (namely 29, 182, 398, 494, 652, and 838) can cost between $5,000 and $20,000. And if such a skin has a StatTrak counter, you should add 15-20% to the price.
Production and Scarcity
You might ask: Why is the price so insanely high? The answer is pretty simple — rarity. The Butterfly Knife | Case Hardened is a rare knife that’s difficult to get from a case. The chances of getting any knife are around 0.26 percent, but don’t forget that a case usually contains several different knives. That means you have to be extremely lucky to get a Case Hardened specifically.
Because it’s so hard to get and because of its high demand in the community, the price of this knife is so high!
Why are Blue Gem Patterns So Valuable?
We just mentioned that getting a Butterfly Knife | Case Hardened is already very difficult, but finding a Butterfly Knife | Case Hardened Blue Gem is almost impossible. To help you better understand the odds of finding a Blue Gem pattern on a Butterfly Knife | Case Hardened, let’s break it down with some simple math.
You can only find the Butterfly Knife | Case Hardened in the Operation Breakout Weapon Case. This case includes 13 different Butterfly Knife skins like Crimson Web, Stained, Slaughter, and a few others. Out of all the Case Hardened knives, only six specific patterns are considered true Blue Gems — 29, 182, 398, 494, 652, and 838.
Given this information, we can figure out your odds of snagging this particular knife:
- Chance of getting a knife from the case: 0.26%
- Chance that the knife is a Case Hardened: 1 in 13, or 7.69%
- Chance that the Case Hardened has a Blue Gem pattern: 6 out of 1000, or 0.6%
0.0026 * (1 / 13) * (6 / 1000) * 100 = 0.0012%
To put that into perspective, 0.0012% means you’d have to open 1 out of every 83,000 cases! Incredible, right? Just imagine how many cases you would need to open to get a single Butterfly Knife | Case Hardened Blue Gem. This extreme rarity is exactly why it is so valuable and so expensive.
Investment Potential and Future Projections
If you’re one of the lucky people who has a Butterfly Knife | Case Hardened in your inventory, then you may have already noticed how the skin is slowly increasing in price. This is happening because, globally, all skins in the game are going up in value — but knives especially are seeing the biggest growth.
This is mainly due to the fact that the cases that can drop the Butterfly Knife | Case Hardened no longer appear as frequently in the game. You now have to be really lucky to get an Operation Breakout Weapon Case. Due to this rarity, the price of the case itself increases, and if the cost of the case is high, then, of course, the cost of the knife will also increase.
This trend has been working for many years in CS2. If you’re considering finding a good skin for investment, one that simply sits in your inventory, allowing you to play games with it and then sell it quickly and without problems, then we’re talking about an ideal candidate.
Especially if we are talking about the Butterfly Knife | Case Hardened Blue Gem, because its price has increased by at least 107% recently!
Wrapping Up!
Butterfly Knife | Case Hardened is a true gem in CS2, a knife that boasts an incredible look and interests not only collectors but also casual players, a knife about which you now know more and can share with your friends! We hope you liked our guide on Butterfly Knife | Case Hardened.
If so, then join the discussion on Reddit and let us know which rare patterns you’d like us to explore next!
What case has the Butterfly Knife case hardened?
The Operation Breakout Weapon Case is the only case where you can find the Butterfly Knife | Case Hardened.
What is the number 1 blue gem in Butterfly knife?
There are six patterns that are nearly indistinguishable (Blue Gems): 29, 182, 398, 494, 652, and 838. While the “best” is subjective, pattern 182 is a frequent choice among players.
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