Quick answer
Blue Gem is a community label, not a universal Valve rarity tier.
An item is the combination of weapon, finish and attributes such as wear, pattern and special status. Keeping those fields separate avoids most comparison errors. A cautious framework for community Blue Gem naming and pattern-dependent premiums.
Blue Gem is a community label, not a universal Valve rarity tier.
Accepted pattern rankings vary by weapon and sometimes by marketplace community.
Screenshots should be paired with inspect data and pattern index.
Illiquid premium items need wider uncertainty ranges in valuation.
How to read the data
Begin with the exact record involved: item name, variant, source and observation date. Then separate a factual game-data field from an estimate, community convention or market inference. This sequence keeps a helpful shorthand from becoming a false claim.
Scroll horizontally for all evidence columns.
Practical checklist
- 01Blue Gem is a community label, not a universal Valve rarity tier.
Document the evidence and any remaining uncertainty before using this point in a valuation, simulator or publication.
- 02Accepted pattern rankings vary by weapon and sometimes by marketplace community.
Document the evidence and any remaining uncertainty before using this point in a valuation, simulator or publication.
- 03Screenshots should be paired with inspect data and pattern index.
Document the evidence and any remaining uncertainty before using this point in a valuation, simulator or publication.
- 04Illiquid premium items need wider uncertainty ranges in valuation.
Document the evidence and any remaining uncertainty before using this point in a valuation, simulator or publication.
Common mistakes
Treat a listing as a sale
Asking prices can be stale, manipulated or far from executable demand.
Hide model assumptions
Fees, odds and freshness windows must stay visible and editable.
Match the exact variant
Wear, pattern, StatTrak, Souvenir and event identity can change the record.
Keep an unavailable state
Missing evidence should remain missing instead of becoming fabricated data.
Sources and methodology
This guide derives its factual framing from the references below. External sources can change; LootGap records a review date and does not silently replace missing facts.
- ↗ByMykel CSGO-API documentationhttps://github.com/ByMykel/CSGO-API
- ↗Valve game-data referenceshttps://www.counter-strike.net/
Frequently asked questions
What is the main takeaway from “Blue Gem guide”?+
Blue Gem is a community label, not a universal Valve rarity tier.
Can this guide guarantee a market result?+
No. It explains item data and decision methods. Prices, liquidity and outcomes can change, and simulated/model results are not guarantees.