Classic Knife Case Hardened: Blue Gem Seed Patterns & Market Trends
CS2 Knives are one of the most valuable and desirable treasures of the game. They offer a variety of designs and model types, yet remain valuable and eye-catching. Today, we want to explore one of the most fascinating gold items in the Counter-Strike — Classic Knife | Case Hardened. Due to its unique, colorful patterns, including rare Blue Gems, it offers a range of versions, each with an unrepeatable value. But why are finishes with a high amount of blue coloration among the most expensive and coveted? Let’s dive in and find all the answers below.
Classic Knife Blue Gem Research Methodology
As always, we should explain our research methodology. First of all, our analysis is based on all open databases, including blogs, market platforms, and skins databases. Additionally, we paid attention to the Reddit community, old trades, listings comparison, and collectors’ discussions. It allows us to gather all possible information about Classic Knife | Case Hardened Blue Gem patterns.
Also, we are focused on the best Classic Knife | Case Hardened patterns, such as #1, #2, and Tier 1, which contain less than 2% of all Classic Knife patterns. Our team compares them with regular Case Hardened versions to understand differences in rarity, the visual purity of blue, and actual sold and listing prices.
As a result, our guide may help all CS2 players, collectors, and investors to find and add Case Hardened Classic Knife Blue Gem to their inventory.
Key Findings into the Rarity & Value of Classic Knife Blue Gem Skins
We should also discover the key findings into the rarity and value of Classic Knife | Case Hardened Blue Gem patterns. Exploring such details can help players understand the essential facts about this skin and its seeds.

Rarity of Blue Gem Patterns
It’s no news that Classic Knife | Case Hardened is one of the Special Items. As one of the gold items, the odds of obtaining it through a case opening are exceedingly low, at approximately 0.26%. Still, in our case, it’s more essential to know the chance of getting Classic Knife | Case Hardened Blue Gem patterns. Based on open-source information, the number of scarce seeds is less than 2% of all Case Hardened patterns for that knife. Here, we provide a table with all seeds below:
| #1 | 403 |
| #2 | 449, 585 |
| Tier 1 9 | 58, 169, 281, 316, 456, 577, 601, 634, 681 |
| Tier 2 12 | 55, 107, 166, 288, 583, 606, 651, 668, 704, 910, 922, 946 |
| Tier 3 59 | 67, 91, 103, 157, 162, 167, 170, 179, 180, 187, 202, 210, 227, 235, 239, 262, 269, 294, 336, 345, 351, 372, 374, 383, 393, 417, 447, 496, 503, 504, 516, 519, 526, 529, 533, 537, 551, 556, 588, 619, 624, 628, 632, 680, 689, 698, 715, 797, 812, 818, 837, 850, 867, 880, 887, 915, 916, 941, 954 |
| Tier 4 78 161 | 3, 14, 59, 84, 88, 95, 108, 115, 116, 124, 138, 151, 176, 203, 212, 222, 286, 292, 298, 299, 315, 325, 349, 382, 384, 387, 400, 429, 430, 442, 462, 507, 523, 524, 525, 528, 532, 546, 547, 564, 600, 610, 613, 635, 646, 665, 669, 675, 683, 693, 700, 710, 712, 719, 740, 750, 760, 789, 790, 794, 805, 806, 807, 820, 821, 828, 859, 866, 869, 872, 878, 899, 902, 955, 959, 969, 973, 995 |
CS2 Classic Knife | Case Hardened Blue Gem pattern #403 is the rarest seed among all patterns for this knife. The chance of obtaining it is approximately 0.00026%. The odds of getting one of the #1 or #2 patterns are around 0.00078%. Lastly, players have a 0.00312% chance of obtaining a random seed from #1, #2, and Tier 1 Blue Gems.
The mentioned tiers are the best among all Classic Knife Blue Gems. Their price could be over a few thousand dollars or higher. The final cost strongly depends on the amount of blue coloration, float value, and the availability of the StatTrack system.
Pricing Insights
Continuing the topic of prices, our team explored the details of the CS2 Classic Knife | Case Hardened cost. For a better understanding, we divided prices for standard patterns and rare Blue Gems.
The price of standard Classic Knife | Case Hardened patterns ranges from $125 to $1,150. It strongly depends on many factors, such as float and wear value, or the availability of the StatTrack system. As you can see in the table below, the difference between the standard Factory New version and the StatTrack Factory New version is almost one thousand dollars. At the same time, the difference between other wear levels is not so huge.
| Factory New | Minimal Wear | Field-Tested | Well-Worn | Battle-Scarred | |
| Standard | $275 | $156 | $129 | $125 | $127 |
| StatTrack version | $1150 | $222 | $199 | $138 | $183 |
The Classic Knife | Case Hardened Blue Gem price varies based on the amount of blue coloration. In fact, it can be much higher than standard patterns. Still, it depends on the amount of blue coloration on the blade. For example, pattern #403 could cost over $20,000. For Tier 1 Blue Gems, the price lies in the range of a few thousand dollars. At the same time, the value of lower tiers is similar to the prices of standard patterns.
Production and Scarcity
The last key finding into the rarity and value of Classic Knife | Case Hardened lies in an understanding of its production and scarcity. Valve introduced it on October 18, 2019. Players can find the Classic Knife with this finish only in the CS20 Case, priced from $0.85 to $2.25.
The interesting detail is that there are around 7000 owners of that skin. Based on the number of Blue Gems, only one thousand of them can own at least Tier 3 or Tier 4 seeds. For the rarest seeds, such as #1, #2, and Tier 1 patterns, the number of theoretical owners could be fewer than a hundred users. In other words, it’s an honour to own such scarce skin.
Investment Potential and Future Projections
Usually, the investment potential of valuable CS2 items, such as Classic Knife | Case Hardened and its Blue Gem patterns, is not negotiable. Such skins’ value stayed the most stable on the CS2 market for years. Of course, the last Trade-Up Update made adjustments, and now it may not look as solid as it was.
Still, if we’re talking about the standard Classic Knife | Case Hardened, it depends on the float value and the availability of the StatTrack system. For example, over the last month, the price for standard versions in Factory New and Minimal Wear conditions dropped by almost $100, from $394.45 to $282.83 and from $263.99 to $156.87, respectively. At the same time, the StatTrack Classic Knife | Case Hardened price remained unchanged.
Of course, the players’ demand plays a significant role in price fluctuations. In the case of rarest Blue Gems, their price will remain stable even with adding a new trade-up system.
Why are Blue Gem Patterns So Valuable?
Lastly, we also should mention the reasons for the high value of Blue Gem patterns. And the first one is the uniqueness of pattern, which makes each Blue Gem unrepeatable. Additionally, the blue makes it look outstanding in contrast to the other CS2 skins. Also, these rare patterns are highly sought after by collectors and investors due to their scarcity and high secondary-market value.
As a bonus, the rarer and more unique the pattern, the higher the chance that its value will increase over time. It mainly refers to moments when the knife was obtained during a limited period or in specific cases.
Wrapping Up!
As you can see, Classic Knife | Case Hardened Blue Gem patterns share both a high value and extreme rarity in the CS2 community. The number of top seeds is exceedingly small, which makes them more coveted and desirable. At the same time, Blue Gem offers both unique aesthetic appeal and a premium status. As a result, it’s a symbol of prestige.
Join the discussion on Reddit and let us know which rare patterns you’d like us to explore next!
How much does a Classic Knife Case Hardened Blue Gem cost?
The price for the best Blue Gems, like #1 and #2, could be over $10,000 depending on the float value and the availability of the StatTrack system. Tier 1 patterns cost around $1,000 to $2,000. The price for other tiers is lower, ranging from $200 to $800.
What are the most common Classic Knife Case Hardened patterns?
The most common patterns are those that aren’t Blue Gems. They consist of over eight hundred seeds that don’t have a noticeable amount of blue coloration to qualify as Blue Gems.
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