Master Guide to Classic Knife Case Hardened Blue Gem Patterns & Tier Rankings

The higher the percentage of blue color present in a Blue Gem, the more highly the pattern index is regarded within the community. Ideally, a Tier 1 Blue Gem should have a full blue playside, with no traces of yellow being present. The amount of blue in the backside isn't taken into account when ranking Blue Gems in CS2.
Tier 1 patterns have the highest degree of the blue tint on the play side, which gradually decreases as you move further down to Tier 2, and onwards. The #1 seed pattern for the Classic Knife Case Hardened is #403, which is a true Blue Gem. Tier 1 knives guarantee overpay, which diminishes on lower tiers and is more reflective of the normal price ranges for the finish.
The legendary #403 pattern represents the pinnacle of Classic Knife Case Hardened patterns, featuring a true Blue Gem with full blue playside coverage that makes it the most sought-after pattern in the collection.
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1 pattern - The legendary #403

The legendary #403 pattern represents the pinnacle of Classic Knife Case Hardened patterns. This is the most valuable and sought-after Classic Knife Case Hardened pattern in existence, featuring a true Blue Gem with full blue playside coverage that makes it extremely rare and valuable.
2 patterns - Outstanding alternatives

These exceptional Blue Gem patterns include #449 and #585, offering outstanding blue coverage that rivals the legendary #403. They represent premium alternatives for collectors seeking exceptional Blue Gem patterns with guaranteed overpay value.
9 patterns - Highest degree of blue tint

Tier 1 patterns have the highest degree of the blue tint on the play side after the #1 and #2 patterns. These knives guarantee overpay and are highly sought-after by collectors for their exceptional blue coverage with minimal yellow areas.
12 patterns - Great blue coverage

These patterns have great blue coverage with some yellow areas but still maintain impressive Blue Gem status. They offer excellent value for collectors seeking Blue Gem patterns at more accessible prices while maintaining strong visual appeal.
35 patterns - Good blue coverage
These patterns have good blue coverage with more noticeable yellow areas but still qualify as Blue Gem patterns. They provide solid value for collectors seeking Blue Gem status at competitive prices.
83 patterns - Reflective of normal price ranges
These patterns are more reflective of the normal price ranges for the finish and have more of a dull gold and gray hue instead of the prized blue. They provide entry-level access to the Blue Gem category at the most affordable prices.
Pattern #403 is the holy grail of Classic Knife Case Hardened - a true Blue Gem with full blue playside coverage.
Tier 1 knives guarantee overpay, which diminishes on lower tiers and becomes more reflective of normal price ranges.
Ideally, a Tier 1 Blue Gem should have a full blue playside with no traces of yellow being present.
The amount of blue in the backside isn't taken into account when ranking Blue Gems in CS2.
Lower tier finishes have more of a dull gold and gray hue instead of the prized blue coloration.
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