Pattern 387 sits alone at the top of the Karambit Blue Gem hierarchy. The Factory New copy carries a private-market valuation between $1.5 million and $2 million. Only 158 Karambit Case Hardened seeds out of 1,000 qualify as Blue Gems across all four tiers.
Karambit Case Hardened drops at a 0.26% combined knife rate from 11 legacy CS2 containers. Below are the tiers, seed lists, float multipliers, and sourcing routes that shape every Blue Gem trade in mid-2026.
Understanding Karambit Blue Gems: What Makes Them Special
Karambit Blue Gem is a Case Hardened knife variant with heavy blue coverage on the playside. The Case Hardened finish layers randomized blue, purple, gold, and gray stains across the blade.
Every Case Hardened skin rolls a pattern seed from 1 to 1,000 at drop time. That seed decides where each color lands. Most seeds produce a gold-dominant surface. Only 158 seeds land in Blue Gem territory.
Playside coverage matters far more than backside. That face shows during inspect animations and gameplay. A backside-heavy knife with 30% playside blue earns $3,000 to $5,000. Playside Tier 1 knives start near $30,000.
Normal Case Hardened vs Blue Gem quick check:
- Normal Case Hardened: yellow and purple dominant, blue under 30% on playside
- Fake Blue Gem: 40 to 60% blue on backside, gold-heavy playside
- True Blue Gem: 60% or more clean blue on the playside
Statistical Rarity: The Odds of Obtaining Blue Gem Patterns
CS2 Case System drops any knife at a 0.26% combined rate. Valve does not publish per-knife or per-pattern probabilities. Community math fills that gap. Independent trackers like CSFloat and Buff163 supply the sample sizes behind most estimates and cross-check them against Steam Market listings. Real observed distributions deviate from theoretical odds even at multi-million case-opening scales.
Skin.Club estimates the odds of unboxing any Karambit Blue Gem at roughly 1 in 156,000 openings. Pattern 387 in Factory New drops at about 1 in 833 million. StatTrak FN #387 sits at 1 in 3.6 billion. No StatTrak #387 has ever surfaced.
| Tier | Approx. Unboxing Odds | Number of Patterns |
| God Tier (#387) | 1 in 833,000,000 (FN) | 1 |
| Tier 1 | 1 in ~156,000 | 10 to 14 |
| Tier 2 | 1 in ~50,000 | 31 |
| Tier 3 | 1 in ~30,000 | 45 |
| Tier 4 | 1 in ~15,000 | 72 |
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The Ultimate Blue Gem: Pattern #387 Explained
Pattern 387 stands as the God Tier seed of the Karambit Case Hardened. It carries near-complete blue coverage on the playside with a single small purple dot near the ricasso. No other Karambit seed comes close to that clean playside distribution.
Only nine copies of Pattern 387 exist across all wear levels. One confirmed Factory New copy stands, though a possible second FN unbox surfaced in late 2024. A player named 2sh0ts unboxed the original FN copy in September 2013, shortly after the Arms Deal Update introduced weapon skins.
Collectors started calling #387 the "True Blue Gem" once the tier system took shape around 2016. Its status climbed through the 2017 to 2019 wave of Chinese collector demand. That wave pushed valuations from six figures into seven-figure territory.
A Field-Tested #387 unboxing happened on July 2, 2023, by former Valorant player yurr69. He sold it to a Chinese collector for $169,000 within days.
Pattern 387 key features:
- Playside coverage: near-total blue with only a small purple dot
- Total copies across all wears: 9
- Factory New copies confirmed: 1 (possible second reported late 2024)
- Nickname among collectors: True Blue Gem, #1 Blue Gem
- Current market valuation: $1.5 million to $2 million
Current Ownership Status of Pattern #387
Factory New Pattern 387 sits in the inventory of a Chinese collector known as 青い王 (Blue King). He also goes by Newb Rage on Steam. His inventory has stayed private for years.
Blue King rejected a $1.5 million offer in 2021, replying that "1.2 is low". The offer came in Bitcoin equivalent to 1.2 million Euros at the time.
That same Bitcoin sum clears $2 million by mid-2026 pricing. The Factory New copy carries a standing valuation of roughly $2 million. No public sale has closed at that number.
Field-Tested copies of #387 change hands in the low six figures. The FN-to-FT price gap on #387 exceeds almost any other CS2 skin.
Blue Gem Pattern Tiers: A Complete Breakdown
Karambit Blue Gem tier system splits patterns into God Tier plus four community-defined tiers. Placement depends on playside blue percentage. Independent trading platforms and community boards converged on similar splits after years of trading data.
Blue Percentage Coverage on the playside drives tier placement. Small percentage differences produce large price gaps. A jump from 80% to 95% blue can shift a knife from $50,000 to $500,000.
| Tier | Playside Blue | Price Range (FN) | Pattern Count |
| God Tier | 95%+ | $1.5M to $2M | 1 (#387) |
| Tier 1 | 85 to 99% | $30,000 to $300,000 | 10 to 14 |
| Tier 2 | 80 to 90% | $10,000 to $50,000 | 31 |
| Tier 3 | 55 to 70% | $3,000 to $15,000 | 45 |
| Tier 4 | 40 to 55% | $2,000 to $6,000 | 72 |
Tier 1 Patterns: The Elite Blue Gems
Tier 1 covers the nine patterns that sit just below #387. Consensus core group per Skinport and Skinflow: 442, 269, 321, 73, 507, 776, 853, 902, 955.
These knives carry near-total blue coverage on the playside. Small purple flecks or a hint of gold near the finger ring separate them from #387. Pattern 442 tends to trade above #269 despite similar playside coverage. Its playside shows almost no gold streaks near the tip. Pattern 955 pulls specific demand for its tight vertical blue distribution.
Factory New copies of the top Tier 1 seeds trade in six figures on private markets, often reaching $80,000 to $300,000 across trusted trading platforms. Field-Tested copies of Tier 1 seeds sit closer to $30,000 to $60,000.
Tier 2 Patterns: Exceptional Blue Coverage
Tier 2 catches 31 seeds with noticeable gold on the ring or tip. Playside blue lands in the 80% to 90% band. The front face still reads as a Blue Gem at a glance.
Seed pool: 905, 698, 670, 130, 375, 664, 828, 74, 282, 453, 868, 377, 891, 798, 341, 541, 713, 661, 494, 4, 182, 823, 273, 838, 917, 82, 721, 510, 809, 470, 179
Serious collectors treat this tier as the sweet spot when Tier 1 money sits out of reach. Pattern 670 pulls specific demand because of its clean vertical blue streaks. Factory New Tier 2 trades between $10,000 and $50,000 depending on seed and float.
We have watched Pattern 494 and Pattern 823 outperform lower Tier 1 patterns on the resale market during 2025. Buyer preference sometimes rewards visual balance over raw percentage.
Tier 3 Patterns: Significant Blue Presence
Tier 3 covers 45 seeds with roughly 55% to 70% blue playside coverage.
Seed pool: 262, 322, 30, 256, 139, 782, 989, 888, 11, 844, 92, 919, 112, 770, 330, 463, 306, 34, 429, 965, 811, 522, 803, 20, 575, 638, 914, 580, 236, 310, 916, 515, 631, 407, 371, 841, 555, 711, 632, 398, 598, 420, 283, 856, 202
Pattern 555 sits mid-pack here at roughly 60% playside blue. It carries iconic Blue Gem status on the Bayonet but lands in Tier 3 on the Karambit. Factory New #555 trades at $6,000 to $12,000.
Buyers get a clear Blue Gem look at $3,000 to $15,000 across Factory New and Minimal Wear. Field-Tested copies drop into the $1,500 to $4,000 zone.
Tier 4 Patterns: Entry-Level Blue Gems
Tier 4 gathers 72 patterns with 40% to 55% playside blue coverage.
Seed pool: 25, 38, 335, 694, 424, 852, 849, 152, 727, 468, 106, 265, 194, 961, 138, 708, 942, and 55 additional seeds
Trader debates still flare over whether some Tier 4 seeds qualify as true Blue Gems. Pattern 335 and Pattern 424 sit on the edge with substantial gold or purple mixing into the blue.
Factory New Tier 4 patterns start around $2,000 to $3,000. Field-Tested copies drop into the $1,000 to $1,500 range, close to standard Case Hardened pricing.
New collectors often start here. Some traders climb from Tier 4 into Tier 2 over 12 to 18 months through targeted swaps.
Factors That Influence Blue Gem Value
Five factors decide Blue Gem value from pattern seed to buyer demand cycles.
Value factors ranked by impact:
- Pattern seed drives playside blue percentage and placement.
- Float value scales price 3x to 10x from Battle-Scarred to Factory New.
- Pattern Inspection verification shapes final trade price by 20% to 30%.
- StatTrak status hits roughly 10% of knife drops and multiplies rarity.
- Buyer demand cycles peak around Chinese Lunar New Year and CS Majors.
A low-float Tier 3 Factory New can outsell a Tier 2 Field-Tested with a higher float. Two knives on the same seed can differ by 40% in price based on float alone.
Wear Rating and Float Value Impact
Float value runs from 0.00 to 1.00 on every Case Hardened knife. It sets the wear condition and controls how clean the blade surface reads.
Factory New (0.00 to 0.07) commands the highest prices. Case Hardened patinas darken as float climbs. Higher floats add a brown-gray tint that mutes the blue. Well-Worn and Battle-Scarred copies keep the pattern but read washed out during inspects.
| Wear | Float Range | Price Multiplier vs FN |
| Factory New | 0.00 to 0.07 | 1.0x (baseline) |
| Minimal Wear | 0.07 to 0.15 | 0.6x to 0.8x |
| Field-Tested | 0.15 to 0.38 | 0.3x to 0.5x |
| Well-Worn | 0.38 to 0.45 | 0.15x to 0.25x |
| Battle-Scarred | 0.45 to 1.00 | 0.10x to 0.20x |
Low-float FN copies below 0.02 pull an extra 15% to 30% premium. Buyers usually chase float below 0.05 for six-figure purchases. Two #442 copies at Factory New and Field-Tested can trade at a 3x gap even with identical blue coverage.
Market Trends and Collector Demand
Chinese Collectors reshaped the Blue Gem market between 2017 and 2019. Blue and gold carry associations with luck and wealth in Chinese collector circles. Those symbols mapped directly onto Blue Gem Karambits.
Prices on top Tier 1 patterns multiplied several times through that window. The rejected $1.5 million offer on #387 in 2021 anchored the top of the market.
The 2025 to 2026 window brought a second demand wave. Player-base growth and coverage from figures like ohnePixel drove Tier 2 and Tier 3 valuations sharply higher.
Market indicators worth tracking:
- Buff163 Karambit Case Hardened listings by seed
- CSFloat sold listings on Tier 1 to Tier 3 patterns
- Streamer inventory changes and public sale posts
- Case supply on legacy containers (Bravo, Winter Offensive)
- Steam concurrent player counts on CS2
How to Identify Your Karambit's Pattern
Pattern Inspection takes two minutes once you know the steps. The pattern seed appears in the item details panel inside CS2.
Step-by-step identification:
- Open your CS2 inventory and select the Karambit Case Hardened.
- Right-click the item and choose Inspect to open the 3D viewer.
- Click the i icon or the info tab inside the inspect window.
- Locate the Pattern Template value, which is your seed number from 1 to 1000.
- Cross-reference the seed against the tier lists in this guide.
- Verify with a third-party pattern checker for the exact tier ranking.
Third-party tools give faster tier lookups than manual list checks. CSGOFloat reads the inspect link directly and returns the pattern index plus float value in one query. CSGOBlueGem shows visual comparisons of your seed against reference photos.
Trusted pattern verification resources:
- CSGOFloat for float and pattern reader with inspect link support
- CSGOBlueGem for visual pattern gallery per weapon
- IsItABlueGem for searchable tier database across Case Hardened skins
- Steam Community pattern guides for community-maintained seed lists
Common mistake: buyers check backside images and assume Tier 1 status. Always confirm playside coverage with fresh screenshots at inspection distance.
Blue Gem Purchasing Guide: Tips From an Expert
Trading Platforms handle most Blue Gem sales above the $10,000 mark. Steam Market caps individual listings at $1,800. That cap prices out every Tier 1 and most Tier 2 knives.
Buying process in six steps:
- Define your budget and target tier before searching listings.
- Shortlist three to five specific pattern seeds within that tier.
- Compare active listings across two or more trusted platforms.
- Request fresh inspect links and float values from the seller.
- Verify pattern and float on CSGOFloat before agreeing on price.
- Complete the trade through Steam or the platform's escrow system.
Trusted marketplaces for Blue Gem purchases:
- Buff163 for the largest Case Hardened listing pool
- CSFloat for US-facing escrow-backed Tier 2 to Tier 4 trades
- Skinport for European-base transparent float and pattern display
- BitSkins for a Blue Gem-focused inventory tab
Common scams and how to avoid them:
- Fake inspect links pointing to a different knife
- Photoshopped screenshots that shift color balance toward blue
- Off-Steam payment requests bypassing platform escrow
- "Middleman" impersonation on Discord and Steam friends lists
- Trade holds followed by inventory reversals through payment disputes
Never send money through PayPal Friends and Family or crypto to unknown wallets for skin trades. Legitimate platforms hold both sides of the trade until confirmation clears.
Which CS2 Cases Contain the Karambit Case Hardened?
CS2 Case System restricts Karambit Case Hardened drops to 11 legacy containers.
Cases containing Karambit Case Hardened:
- CS:GO Weapon Case
- CS:GO Weapon Case 2
- CS:GO 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
- Winter Offensive Weapon Case
- Revolver Case
Case prices vary from $2 to $30 on the Steam Market. Keys add $2.49 per opening. A case route to Blue Gem status burns money against 1-in-156,000 odds. Most collectors purchase their Blue Gem outright.
Conclusion: Investing in Karambit Blue Gems
Karambit Blue Gem valuations climbed steadily from 2017 through mid-2026. Pattern 387 anchors the ceiling near $2 million. Tier 1 seeds run $30,000 to $300,000 depending on float and pattern placement. Entry-level Tier 4 holds the floor at roughly $2,000.
Legacy containers stopped entering active drop pools years ago. Every case opened permanently removes one potential Blue Gem drop, so available inventory keeps shrinking.
Final takeaways for buyers and collectors:
- Buy the pattern first, then chase float within your budget.
- Verify every purchase through CSGOFloat before payment.
- Treat Tier 2 as the sweet spot for value and appreciation potential.
- Track Chinese market activity on Buff163 for demand signals.
- Skip case-opening as an investment strategy for Blue Gems.
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