Question 1

What is a CS2 blue gem?

Accepted Answer

A blue gem is a Case Hardened skin with exceptional blue coverage (70%+). These patterns are extremely rare - only 3-5% of Case Hardened skins qualify as blue gems. The famous Karambit #387 is so valuable that its owner rejected an offer exceeding $1.5 million due to its full blue coverage and rarity. Blue gems are highly sought after by collectors and traders.

Question 2

How do I check if my skin is a blue gem?

Accepted Answer

You have three convenient options: (1) Connect your Steam account using our secure OAuth system to automatically scan your inventory, (2) Use the inspect link analyzer in the Tools section, or (3) Manually enter a pattern ID in the /tools page to check any specific pattern. We'll instantly identify blue gem patterns and show their tier classification, rarity percentage, and estimated market value.

Question 3

Is my Steam account safe when I connect it?

Accepted Answer

Yes, 100% safe. We use Steam's official OAuth authentication system - we never see your password or have access to your Steam Guard. We only read your public inventory data with read-only permissions and cannot trade, sell, modify, or access your items in any way. Your account security and items are fully protected.

Question 4

What's the difference between Tier 1, Tier 2, and Tier 3 patterns?

Accepted Answer

Tier 1 patterns have around 90%+ blue coverage and represent roughly 1% or less of all Case Hardened patterns, making them extremely valuable. Tier 2 has approximately 70-90% blue coverage (around 5% of patterns). Tier 3 has roughly 50-70% blue. The tier system dramatically affects value, with Tier 1 patterns commanding significantly higher prices than lower tiers. Pattern placement and gold accent colors also influence tier classification.

Question 5

Is this tool free to use?

Accepted Answer

Yes, isitabluegem is completely free with no hidden fees or premium tiers! All features including pattern analysis, inventory verification, achievements system, global leaderboards, and public profiles are available at no cost. We're a non-commercial tool built by CS2 enthusiasts for the community.

Question 6

How many CS2 patterns can I analyze?

Accepted Answer

Our database tracks blue gem patterns across all 1,000 unique Case Hardened pattern seeds (0-999) for every weapon type. We focus specifically on identifying and analyzing blue gem patterns (70%+ blue coverage) across 24+ knives, pistols, and rifles. Each blue gem pattern is analyzed for blue percentage, exact blue placement, tier classification, and rarity metrics.

Question 7

How accurate is your blue percentage calculation?

Accepted Answer

Our algorithm analyzes all 262,144 pixels of the Case Hardened texture using advanced color transformation mathematics. We process the exact same texture files that Valve uses in CS2, ensuring accurate pixel-level pattern analysis. Our calculations are based on precise color detection and pattern mapping.

Question 8

Can I showcase my blue gem collection publicly?

Accepted Answer

Yes! Create a free profile to showcase your verified collection, display your top 5 achievements, and appear on global leaderboards. Your public profile URL is shareable with the community, and you can customize which patterns to highlight in your showcase. Climb the rankings by unlocking rare achievements and collecting high-tier patterns.

Question 9

What is the Blue Gem Studio?

Accepted Answer

The Blue Gem Studio (/studio) is an exclusive feature for authenticated users that provides advanced pattern visualization and analysis tools. We've mathematically solved the Case Hardened texture transformation system, allowing you to explore how patterns transform across different weapons. Upload your own textures, analyze pattern mappings, and gain deeper insights into what makes each blue gem unique. Access requires Steam or Discord authentication.

isitabluegem

Explore our interactive pattern database

Get detailed information and analytics on your favourite bluegem

Screenshot Gallery

Fancy Renders

Inspect your skins and check their value

CS2 Inspect Link Check

Karambit

Understand the pattern seed-based texture transformation

Live Transformation
Ready to Start

Texture Overview

Start Your Blue Gem Collection

Verify Your Inventory

First Blue

Tier Collector

The #1

Unlock Achievements

Build Your Collection

Climb the Leaderboard

Join Our Community

Ready to Connect?

Frequently Asked Questions