Ranking has been divided into 4 tiers, each with different seed patterns. In higher tiers such as tier 1 and 2, the blue stains from the Case Hardened finish are found in the highest quantities, while their quantity in tiers 3 and 4 diminishes. Blue is the most highly prized color in the Case Hardened finish and proportionally generates the highest premiums over and above the average market price for the Case Hardened skins.

The Blue Gem Case Hardened Tier 1 patterns for the Flip Knife may cost anywhere between USD 5-10k by rough estimates. The #1 Blue Gem Case Hardened seed pattern #670 in Well-Worn condition is currently owned by Krieke, a renowned Belgian Blue Gem skin collector. Tier 2 variants may be slightly more affordable and have been seen listed on online marketplaces for a little over USD 1k.

321, 151, 592, 661, 555

828, 955, 179, 387, 844, 168, 868, 363, 791, 750, 823, 103, 760

996, 969, 905, 169, 695, 532, 577, 879, 770, 733, 715, 209, 872, 526, 456, 13, 681, 430, 189, 112, 887, 689, 28, 628, 228, 137, 878, 922, 4, 768, 479, 961, 690, 278, 429, 325

557, 426, 935, 892, 349, 575, 704, 648, 888, 724, 147, 481, 403, 450, 850, 775, 281, 82, 428, 396, 497, 795, 126, 2, 525, 344, 985, 81, 512, 468, 381, 74, 434, 849, 862, 847, 809, 310, 698, 447, 927, 65, 790, 948, 685, 453, 200, 978, 236, 970, 894, 306, 235, 645, 950, 172, 139, 519, 202, 333, 14, 149, 782, 814, 227, 463, 617, 9, 397, 389, 92, 178, 442, 493, 470, 708, 215, 261, 627, 443, 622, 564, 122, 34, 286, 187, 806, 843, 242, 558, 788

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