Basically, there are four different colors that are possible in the Case Hardened Pattern: Blue, Purple, Gold and Silver. On this image below you can see the whole spectrum of the Case Hardened Skin:
Here you can see that there is a big possibility to get a Pattern on your weapon that has much Gold and Silver on it (and only a little bit of Blue). But there are many other combinations that look much better, for example a Pattern with much Blue or a Pattern that is completely Gold. These Patterns can be much more worth than one of the standard patterns.
The rarest and also most wanted patterns have a very big percentage of blue. Important for the value of these items is the percentage of blue on the playside you can see in-game. A standard amount of blue is about 5-10%. The value of these items is about market price. Also very common pattern has 10-15% blue on it. For these items, you can add about 5% to the market price. Quite uncommon patterns have even 15-30% blue on it. The value of these patterns is something like 10% over market price. The very rare patterns have 30-50% blue on it. It is very difficult to assess the value of these items, but they can be worth up to 350% of market price. The higher the percentage of blue, the more is the pattern worth. If there is even more blue on the pattern, in fact, it is impossible to value the items. They are extremely rare and so there are some collectors that are willing to spend very high amounts to get these items.
Here you can see some nice patterns with a big percentage of blue:
The second rarest pattern is a comletely gold pattern. It is very improbable to get an AK or a knife that is completely gold. The problem with these items is that many people don’t like this pattern because it doesn’t look as good as a Blue Gem. Maybe some others are collecting these items and are willing to pay much for it. So it is also very difficult to value this pattern.
Here are examples of gold pattern skins:
The other patterns that might look nice are the Blaze pattern. Sometimes they are called also Rainbow or Galaxy pattern. This is a pattern with a big percentage of purple, marbled with big parts of blue and a gold background. That pattern is very variable and so the amount of purple and blue can be different. So there is also a big price range for this pattern, depending on the collector and his preferences.
These are some nice Rainbow patterns:
All other possible patterns of Case Hardened items are worth more or less market price. It’s depending on the individual preferences and so very standard patterns that are completely silver can be worth a little bit less than market price and some common pattern with a bigger percentage of blue, purple or gold can be worth more than market price.
Below you can see the most admired Case Hardened Knives:
You are reading a guide about Case Hardened and its different patterns, for example the Blue Gem pattern.