{"id":4074,"date":"2026-03-13T16:43:30","date_gmt":"2026-03-13T15:43:30","guid":{"rendered":"https:\/\/sellyourskins.com\/blog\/?p=4074"},"modified":"2026-03-19T17:15:56","modified_gmt":"2026-03-19T16:15:56","slug":"butterfly-knife-case-hardened-blue-gem-pattern-and-seeds","status":"publish","type":"post","link":"https:\/\/sellyourskins.com\/blog\/butterfly-knife-case-hardened-blue-gem-pattern-and-seeds\/","title":{"rendered":"Butterfly Knife Case Hardened \u2013 Blue Gem Pattern and Seeds"},"content":{"rendered":"\n

The Butterfly Knife Case Hardened<\/a> is one of the most prestigious knives in CS2. Its distinctive opening animation makes it one of the most recognizable knives in the game, and when combined with the Case Hardened finish, it can reach very high prices on the skin market.<\/p>\n\n\n\n

The appearance of each individual item depends on the pattern seed,<\/strong> a number ranging from 1 to 1000<\/strong> that determines how the texture is distributed across the blade. Most seeds generate a mix of gold, purple, and blue areas, but only a small portion produce patterns with a high amount of intense blue color.<\/p>\n\n\n\n

Such variants are referred to by the community as Blue Gems<\/strong> and are among the most sought-after patterns in all of CS2.<\/p>\n\n\n\n

Butterfly Knife Blue Gem<\/h2>\n\n\n\n

Every Butterfly Knife Case Hardened uses the same texture, but its placement changes depending on the pattern seed.<\/p>\n\n\n\n

Key information:<\/p>\n\n\n\n

    \n
  • the pattern seed ranges from 1<\/strong> to 1000<\/strong>,<\/li>\n\n\n\n
  • only a small number of seeds generate patterns with a dominant blue color,<\/li>\n\n\n\n
  • for the Butterfly Knife, the most important factor is the blade coverage on the playside<\/strong>,<\/li>\n\n\n\n
  • the more pure blue color on the blade, the higher the collectible value.<\/li>\n<\/ul>\n\n\n\n

    Butterfly Knife Blue Gem Seed Ranking<\/h2>\n\n\n\n

    The trading community typically divides Case Hardened patterns into three quality tiers.<\/p>\n\n\n\n

    Tier 1 (T1)<\/strong>
    <\/strong>The best Blue Gem patterns with the highest blue coverage.<\/p>\n\n\n\n

    Tier 2 (T2)<\/strong>
    <\/strong>Patterns with a large amount of blue but with a greater presence of gold or purple.<\/p>\n\n\n\n

    Tier 3 (T3)<\/strong>
    <\/strong>Seeds with smaller blue areas that may still look visually attractive.<\/p>\n\n\n\n

    Out of 1000 possible seeds<\/strong>, only a small fraction qualify as Butterfly Knife Blue Gems.<\/p>\n\n\n\n

    Key Butterfly Knife Case Hardened Seeds<\/h2>\n\n\n\n

    Tier 1 \u2013 Best Butterfly Knife Blue Gem Seeds<\/h3>\n\n\n\n

    #182 \u2013 79.6%<\/strong>
    <\/strong>#652 \u2013 69.1%<\/strong>
    <\/strong>#494 \u2013 67.4%<\/strong>
    <\/strong>#330 \u2013 65.7%<\/strong>
    <\/strong>#838 \u2013 65.8%<\/strong>
    <\/strong>#398 \u2013 59.6%<\/strong><\/p>\n\n\n\n

    Tier 2 \u2013 Very Good Butterfly Knife Blue Gems<\/h3>\n\n\n\n

    #29 \u2013 73.7%<\/strong>
    <\/strong>#928 \u2013 72.0%<\/strong>
    <\/strong>#703 \u2013 71.6%<\/strong>
    <\/strong>#510 \u2013 71.1%<\/strong>
    <\/strong>#478 \u2013 71.0%<\/strong>
    <\/strong>#881 \u2013 70.1%<\/strong>
    <\/strong>#913 \u2013 68.1%<\/strong>
    <\/strong>#694 \u2013 68.3%<\/strong>
    <\/strong>#868 \u2013 66.2%<\/strong>
    <\/strong>#194 \u2013 65.7%<\/strong>
    <\/strong>#283 \u2013 61.7%<\/strong>
    <\/strong>#396 \u2013 61.1%<\/strong>
    <\/strong>#800 \u2013 60.9%<\/strong>
    <\/strong>#638 \u2013 60.2%<\/strong>
    <\/strong>#488 \u2013 59.9%<\/strong>
    <\/strong>#749 \u2013 59.2%<\/strong>
    <\/strong>#891 \u2013 56.9%<\/strong>
    <\/strong>#371 \u2013 56.5%<\/strong>
    <\/strong>#717 \u2013 54.2%<\/strong>
    <\/strong>#214 \u2013 51.1%<\/strong><\/p>\n\n\n\n

    Tier 3 \u2013 Weaker Butterfly Knife Blue Gems<\/h3>\n\n\n\n

    #424 \u2013 76.3%<\/strong>
    <\/strong>#458 \u2013 76.1%<\/strong>
    <\/strong>#138 \u2013 77.9%<\/strong>
    <\/strong>#179 \u2013 72.7%<\/strong>
    <\/strong>#154 \u2013 67.3%<\/strong>
    <\/strong>#112 \u2013 66.9%<\/strong>
    <\/strong>#664 \u2013 62.9%<\/strong>
    <\/strong>#263 \u2013 62.9%<\/strong>
    <\/strong>#798 \u2013 60.8%<\/strong>
    <\/strong>#358 \u2013 59.5%<\/strong>
    <\/strong>#629 \u2013 55.9%<\/strong>
    <\/strong>#130 \u2013 54.0%<\/strong>
    <\/strong>#59 \u2013 51.9%<\/strong>
    <\/strong>#216 \u2013 51.8%<\/strong>
    <\/strong>#858 \u2013 51.3%<\/strong>
    <\/strong>#618 \u2013 52.7%<\/strong>
    <\/strong>#964 \u2013 50.0%<\/strong>
    <\/strong>#705 \u2013 47.4%<\/strong><\/p>\n\n\n\n

    The percentage of blue color across the entire blade is only one factor in evaluating a Blue Gem. In practice, the placement of the blue color on the playside is equally important, as this is the most visible part of the knife during gameplay.<\/strong><\/p>\n\n\n\n

    Table of Key Seeds<\/h2>\n\n\n\n
    Tier<\/strong><\/td>Seed<\/strong><\/td>Blue color<\/strong><\/td><\/tr>
    T1<\/td>#182<\/td>79.6%<\/td><\/tr>
    T1<\/td>#652<\/td>69.1%<\/td><\/tr>
    T1<\/td>#494<\/td>67.4%<\/td><\/tr>
    T1<\/td>#330<\/td>65.7%<\/td><\/tr>
    T1<\/td>#838<\/td>65.8%<\/td><\/tr>
    T1<\/td>#398<\/td>59.6%<\/td><\/tr>
    T2<\/td>#29<\/td>73.7%<\/td><\/tr>
    T2<\/td>#928<\/td>72.0%<\/td><\/tr>
    T2<\/td>#703<\/td>71.6%<\/td><\/tr>
    T2<\/td>#510<\/td>71.1%<\/td><\/tr>
    T2<\/td>#478<\/td>71.0%<\/td><\/tr>
    T2<\/td>#881<\/td>70.1%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Butterfly Knife Blue Gem Statistics<\/h2>\n\n\n\n
      \n
    • there are 1000 possible seeds<\/strong> in Case Hardened skins,<\/li>\n\n\n\n
    • only a small fraction of them generate Blue Gem patterns,<\/li>\n\n\n\n
    • the best Butterfly Knife patterns are among the most valuable Blue Gems in CS2,<\/li>\n\n\n\n
    • the price of a skin depends primarily on the pattern seed<\/strong>, and only secondarily on float.<\/li>\n<\/ul>\n\n\n\n

      In the case of the Butterfly Knife Case Hardened, a good seed can increase the skin\u2019s value multiple times over. Even a Field-Tested<\/strong> example with an attractive Blue Gem pattern can be significantly more expensive than a standard Factory New version.<\/p>\n","protected":false},"excerpt":{"rendered":"The Butterfly Knife Case Hardened is one of the most prestigious knives in CS2. Its distinctive opening animation…","protected":false},"author":3,"featured_media":4124,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","footnotes":""},"categories":[143],"tags":[],"class_list":{"0":"post-4074","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-skin-tutorial","8":"cs-entry"},"yoast_head":"\nButterfly Knife Case Hardened \u2013 Blue Gem Pattern and Seeds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sellyourskins.com\/blog\/butterfly-knife-case-hardened-blue-gem-pattern-and-seeds\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Butterfly Knife Case Hardened \u2013 Blue Gem Pattern and Seeds\" \/>\n<meta property=\"og:description\" content=\"The Butterfly Knife Case Hardened is one of the most prestigious knives in CS2. 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He specializes in writing about skin market trends, trading strategies, and in-depth looks at rare or valuable items in CS2. Gareth enjoys breaking down complex topics into clear, practical insights that help players make better trading decisions. Outside of gaming, he is a fan of strategy board games, photography, and spending weekends exploring new places.","url":"https:\/\/sellyourskins.com\/blog\/author\/gareth-nolan\/"}]}},"_links":{"self":[{"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/posts\/4074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/comments?post=4074"}],"version-history":[{"count":1,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/posts\/4074\/revisions"}],"predecessor-version":[{"id":4090,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/posts\/4074\/revisions\/4090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/media\/4124"}],"wp:attachment":[{"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/media?parent=4074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/categories?post=4074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sellyourskins.com\/blog\/wp-json\/wp\/v2\/tags?post=4074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}