MAC-10 Case Hardened | All Blue Gem Seeds

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The best blue gem pattern seeds for the MAC-10 Case Hardened in CS2. Less than twenty of the 1,000 possible case-hardened patterns qualify as a blue gem.

Check out more of our Blue Gem guides!

Blue Gem Pattern Guides

All Tier 1 Blue Gem Seeds for the MAC-10 Case Hardened

1
667
2
114
3
406
4
18
5
546
6
587
7
222
8
95
9
239
10
898
11
315

MAC-10 Case Hardened Blue Gem Pattern Guide

All Tier 2 Blue Gem Seeds for the MAC-10 Case Hardened

503, 959, 924, 29, 147, 414, 311, 195, 328, 652, 251, 570, 379, 964, 400, 598, 199, 807, 885, 788, 475, 899, 285, 889, 6, 972, 358, 381, 182, 345, 629, 292, 80, 144

Why are Blue Gems rare and expensive?

Blue gem patterns are a rarity, as most Case Hardened skins typically feature a blend of purples and gold with just a hint of blue. But occasionally, a pattern emerges that is predominantly, or even entirely, blue. These unique skins are highly coveted. Every Case Hardened skin has a pattern seed that’s considered the cream of the crop.

For the MAC-10, the premier paint seed is number 239. Given that this is just one among a thousand possible seeds, and considering the high demand among discerning collectors, it’s no wonder that the finest blue gems are priced significantly higher — sometimes ten to a hundred times more — than the standard rate for a regular Case Hardened version.