Kirimu Tricorne ★★★★

Taken all the way down to base materials, one Kirimu Tricorne is 2 crafting steps deep and needs 4 intermediates — Kirimu Leather ×3, Platinum Nugget ×1, Rose Gold Nugget ×1 and 1 other — which resolve to 7 distinct raw materials totalling 15 units, plus 25 crystals.

That bill outweighs 6,735 of the 13,602 recipes tracked here and 826 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 21 are burned by the intermediates, so the real crystal cost is 11 Wind Cluster, 10 Earth Cluster, 3 Wind Crystal and 1 other kind.

The chain crosses two disciplines — Leatherworker to Lv 50 and Goldsmith to Lv 50 — so no single class can finish it unaided.

4 of the 7 raw materials come out of the ground, and 3 of them are time-gated: Gold Ore (9:00), Platinum Ore (4:00) and 1 other. The widest gap between consecutive opening times is 17 Eorzean hours, about 50 real-world minutes.

Of the intermediates, Rose Gold Nugget has the widest use: 179 recipes call for it, spanning seven of the eight crafting classes.