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Case Hardened — Blue Gem

★ Gut Knife | Case Hardened · Blue Gem Pattern Tier Guide

95 patterns classified across 4 tiers. Each tier section below pairs a rendered example with the full seed list — click any seed to search live listings across our tracked marketplaces.

4 min read95 patterns documentedUpdated this weekby yesriskk (founder cs2search)

00Why patterns matter

Every ★ Gut Knife | Case Hardened · Blue Gem has the same paint_index — but the pattern seed (0–999) controls exactly how the dye lands on the blade. Two listings can have the same wear and float but look dramatically different.

The cards below compare a typical Unranked roll (seed #348) against the Tier-1 hero we picked (seed #567). Same skin, same phase, same wear band — pattern is the only difference.

Unranked Pattern#348

unranked
no pattern premium · the bulk of Case Hardened supply

Tier 1 Pattern example#567

premium
top-tier pattern — community-flagged
Why this mattersBoth knives share identical Steam metadata — Steam treats them as the same item. But buyers who know patterns will pay a premium for the T1 because the visual is unambiguously better. Pattern guides like this one make that premium visible.

About Blue Gem patterns

The Gut Knife is the most affordable knife model, which makes its Case Hardened the cheapest entry into Blue Gem collecting. The seed still decides how much blue lands on the play side, and the bluest rolls are the Blue Gems.

Seed #567 is the best Gut Knife Blue Gem finish — a near-full-blue play side that, for a top Case Hardened, stays comparatively reachable (around $3k in Minimal Wear). Tier 1 also holds #962, #125 and #60.

01T1Tier 1 — Best patterns

What makes a T1

The best patterns in this skin. Tightest symmetry, deepest coverage, and the visual hallmarks that separate top-shelf examples from everything else.

Search all T1 patterns on the marketplaces
Featured: pattern #567 — click image to zoom · toggle Front/Back
All T1 patterns (5)
T160T1125T1567T1647T1962

02T2Tier 2

What makes a T2

Very strong patterns — close to T1 quality but with one or two visual compromises (off-axis tip, slightly less coverage, or a less symmetric back).

Search all T2 patterns on the marketplaces
Featured: pattern #9 — click image to zoom · toggle Front/Back
All T2 patterns (22)
T29T2140T2165T2171T2215T2218T2232T2384T2591T2644T2662T2723T2724T2730T2799T2870T2920T2928T2939T2974T2977T2997

03T3Tier 3

What makes a T3

Above-average patterns. Recognisable as "good" but with a clear weakness compared to T1/T2 — useful for buyers who want a hint of pattern premium without paying T1 prices.

Search all T3 patterns on the marketplaces
Featured: pattern #388 — click image to zoom · toggle Front/Back
All T3 patterns (24)
T340T350T386T3245T3272T3388T3428T3466T3477T3510T3540T3549T3552T3639T3691T3729T3756T3758T3776T3795T3836T3922T3953T3971

04T4Tier 4

No example yet
A render will appear when a listing becomes available.
What makes a T4

The lower end of curated patterns. Still better than a random unranked roll, but the visual differentiator is subtle.

Search all T4 patterns on the marketplaces
All T4 patterns (42)
T437T445T453T466T481T492T4167T4175T4193T4202T4213T4286T4294T4342T4350T4360T4417T4420T4426T4435T4476T4514T4525T4539T4584T4619T4743T4752T4759T4766T4785T4806T4808T4826T4829T4832T4875T4890T4906T4965T4979T4998
Everything else — Unranked

The remaining ~907 paint_seeds fall outside the curated tiers. They make up the bulk of Phase 1 supply on every marketplace and don’t carry a pattern premium — what you see is what you get, like the baseline reference (seed #348) we used at the top of this guide. If a seed isn’t listed in T1–T4 or BTA above, treat it as Unranked.

Credits & sources

Pattern tier classification originally compiled by korenevskiy & Krieke (Steam Community Guide).

Pattern renders are independently generated from live marketplace listings.

This page combines public-domain pattern data with our own renders, live pricing, and cross-marketplace listing search.