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

Ranking has been divided into 4 tiers, each with different seed patterns. In higher tiers such as tier 1 and 2, the blue stains from the Case Hardened finish are found in the highest quantities, while their quantity in tiers 3 and 4 diminishes. Blue is the most highly prized color in the Case Hardened finish and proportionally generates the highest premiums over and above the average market price for the Case Hardened skins.
The Blue Gem Case Hardened Tier 1 patterns for the Flip Knife may cost anywhere between USD 5-10k by rough estimates. The #1 Blue Gem Case Hardened seed pattern #670 in Well-Worn condition is currently owned by Krieke, a renowned Belgian Blue Gem skin collector. Tier 2 variants may be slightly more affordable and have been seen listed on online marketplaces for a little over USD 1k.
The legendary #670 pattern represents the pinnacle of Flip Knife Case Hardened patterns, featuring exceptional blue coverage that makes it the most sought-after pattern in the collection.
1 pattern - The legendary #670

The legendary #670 pattern represents the pinnacle of Flip Knife Case Hardened patterns. This is the most valuable and sought-after Flip Knife Case Hardened pattern in existence, featuring exceptional blue coverage that makes it extremely rare and valuable.
5 patterns - Highest blue concentration

Tier 1 patterns feature the highest blue concentration after the #1 pattern. These patterns command premium prices due to their exceptional blue coverage and rarity in the Case Hardened finish.
13 patterns - High blue coverage

Tier 2 patterns offer high blue coverage and represent excellent value for collectors. These patterns have been seen listed on online marketplaces for over USD 1k and provide impressive Blue Gem status.
36 patterns - Solid blue coverage

Tier 3 patterns provide solid blue coverage with diminished quantities compared to higher tiers. These patterns still qualify as Blue Gem patterns and offer good value for collectors seeking Case Hardened Blue Gem status.
91 patterns - Entry-level Blue Gem

Tier 4 patterns provide entry-level access to the Blue Gem category at the most affordable prices while still maintaining Blue Gem classification in the Case Hardened finish.
Pattern #670 is the holy grail of Flip Knife Case Hardened with exceptional blue coverage - extremely rare and valuable.
Tier 1 patterns may cost between USD 5-10k, making them premium investments for serious collectors.
Tier 2 variants are more affordable and have been listed for over USD 1k on online marketplaces.
Blue is the most highly prized color in Case Hardened finish and generates the highest premiums.
Higher tiers (1-2) have the highest blue quantities, while lower tiers (3-4) have diminished amounts.
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