If you trade or collect in Counter-Strike, you quickly notice how much attention the Flip Knife Case Hardened Blue Gem attracts. Players judge these knives by how much blue appears on the blade, and higher blue coverage usually means higher demand and higher prices.
Not every Case Hardened Flip Knife qualifies as a Blue Gem. Only certain pattern seeds meet the community’s standards, and those patterns fall into different tiers based on their blue placement and intensity. When you understand how these tiers work—including well-known patterns like 670—you can better evaluate what you own or plan to buy.
Flip Knife Case Hardened Best Blue Gem Pattern: 670
Pattern 670 gives you one of the strongest Blue Gem layouts available on the Flip Knife Case Hardened.
You get an almost fully blue blade that stretches from the base to nearly the tip. Only a small trace of gold appears at the very end, while the rest of the visible surface stays consistently blue.
- Seed: 670
- Finish: Case Hardened
- Visual focus: Dominant blue coverage
If you want maximum blue presence with minimal gold interruption, this pattern delivers that balance clearly and cleanly.
Flip Knife Case Hardened Blue Gem Tier 1 Patterns
You can find only five Tier 1 Blue Gem patterns for this knife, which keeps supply limited and demand high. These versions show heavy blue coverage, though small areas of gold or yellow remain visible depending on placement.
Tier 1 pattern seeds:
- 151
- 321
- 555
- 592
- 661
You should pay close attention to where the blue appears on the blade’s main face. Even minor shifts in color distribution affect buyer interest and pricing, and these patterns often sell for several thousand dollars based on condition and float.
Flip Knife Case Hardened Blue Gem Tier 2 Patterns
You will notice more visible gold tones in Tier 2 Blue Gem patterns, which can reduce appeal for strict collectors. Even so, the blade face still shows a strong blue presence, making these seeds a practical choice if you want high blue coverage without paying Tier 1 prices.
These patterns maintain a blue-dominant look across most of the play side.
Tier 2 Pattern Seeds:
103, 168, 179, 363, 387, 750, 760, 791, 823, 828, 844, 868, 955
Flip Knife Case Hardened Blue Gem Tier 3 Patterns
Tier 3 patterns give you a balanced Blue Gem look. You see a noticeable mix of blue and gold, with small areas of purple appearing across the blade. The finish does not deliver full blue coverage, but it still offers clear blue dominance in key areas.
Because the colors blend more evenly, you often get distinct and unconventional layouts. Many players prefer these patterns when they want something less uniform and more visually varied than higher-tier blue-heavy versions.
Common Tier 3 pattern seeds include:
4, 13, 28, 112, 137, 169, 189, 209, 228, 278
325, 429, 430, 456, 479, 526, 532, 577
628, 681, 689, 690, 695, 715, 733
768, 770, 872, 878, 879, 887, 905
922, 961, 969, 996
You should inspect each seed individually, since blue placement and spine coverage vary significantly.
Flip Knife Case Hardened Blue Gem Tier 4 Patterns
Tier 4 Blue Gem patterns represent the most accessible end of the Blue Gem spectrum for the Flip Knife Case Hardened. You will often see a near 50/50 mix of blue and gold tones, with varied layouts that can still look appealing depending on the blade side and lighting.
Because the entry requirement for this tier is lower, supply is much higher than in Tier 1–3 categories. That makes careful inspection important before you pay anything above standard market value.
Common Tier 4 pattern template IDs include:
2, 9, 14, 34, 65, 74, 81, 82, 92, 122, 126, 139, 147, 149, 172, 178, 187, 200, 202, 215, 227, 235, 236, 242, 261, 281, 286, 306, 310, 333, 344, 349, 381, 389, 396, 397, 403, 426, 428, 434, 442, 443, 447, 450, 453, 463, 468, 470, 481, 493, 497, 512, 519, 525, 557, 558, 564, 575, 617, 622, 627, 645, 648, 685, 698, 704, 708, 724, 775, 782, 788, 790, 795, 806, 809, 814, 843, 847, 849, 850, 862, 888, 892, 894, 927, 935, 948, 950, 970, 978, 985.
You should treat these as mixed-value patterns. Some look balanced and clean, while others place blue in less visible areas of the blade.
Which CS2 Cases Contain the Flip Knife Case Hardened?
You can unbox a Flip Knife Case Hardened from several early CS cases. These include:
- CS Weapon Case
- CS Weapon Case 2
- CS Weapon Case 3
- eSports 2013 Case
- eSports 2013 Winter Case
- eSports 2014 Summer Case
- Operation Bravo Case
- Operation Phoenix Weapon Case
- Operation Vanguard Weapon Case
- Revolver Case
- Winter Offensive Weapon Case
Not every case has equal market supply today, but all listed cases can technically drop the knife.
What Makes the Flip Knife Case Hardened Blue Gem Rare?
You first need to hit a knife drop, which already carries very low odds.
Then you must land on the Flip Knife instead of other knife finishes in that case.
Finally, the game must generate a pattern template that qualifies as a Blue Gem.
Each step reduces the probability. Even Tier 4 patterns remain uncommon compared to standard Case Hardened variants.
What Is the Top Blue Gem Pattern for This Knife?
Pattern template #670 stands as the most recognized and valuable Blue Gem for the Flip Knife Case Hardened.
Collectors consider it the benchmark because it shows heavy blue coverage in highly visible areas of the blade. High-tier examples with strong wear ratings can sell for over $20,000, with better floats commanding even more.
Tier 4 patterns do not compete with #670 in terms of coverage or price.
What Price Range Should You Expect?
Price depends on two main factors:
- Pattern tier
- Float value (wear rating)
A Tier 1 pattern such as #670 can reach five figures.
A Tier 4 Blue Gem, however, usually trades close to the price of a standard Flip Knife Case Hardened with similar wear. You should not pay a large premium unless the specific layout shows unusually strong blue placement.
How Many Blue Gem Categories Exist?
The Flip Knife Case Hardened Blue Gem classification system uses four tiers.
- Tier 1: Highest blue dominance
- Tier 2: Strong blue presence
- Tier 3: Moderate blue coverage
- Tier 4: Noticeable but limited blue
Tier 4 includes the widest range of acceptable blue distributions.
How Can You Check If Your Knife Is a Blue Gem?
You can verify your pattern directly in CS2:
- Open your inventory.
- Inspect the Flip Knife Case Hardened.
- Hover over the small information icon.
- Locate the Pattern Template number.
Match that number against known Blue Gem pattern IDs. If it appears in a recognized tier list, your knife qualifies as a Blue Gem within that category.
How Does Float Value Influence Tier 4 Blue Gems?
Float value directly affects surface wear.
Lower floats (Factory New, Minimal Wear) preserve color clarity and reduce visible scratches. Higher floats (Field-Tested, Well-Worn, Battle-Scarred) introduce fading, darkening, and surface damage.
Case Hardened finishes react strongly to wear. Rust tones and scratches can dull blue areas, which lowers demand. Even within Tier 4, cleaner examples typically sell faster and at stronger prices than heavily worn ones.
