Smaragdine Torquetum ★★

Taken all the way down to base materials, one Smaragdine Torquetum is 3 crafting steps deep and needs 4 intermediates — Prismatic Ingot ×3, Pliable Glass Fiber ×2, Onyx ×1 and 1 other — which resolve to 9 distinct raw materials totalling 43 units, plus 38 crystals.

That bill outweighs 12,178 of the 13,602 recipes tracked here and 1,953 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 14 Wind Crystal, 8 Fire Cluster, 8 Wind Cluster and 2 other kinds.

The chain crosses two disciplines — Goldsmith to Lv 80 and Alchemist to Lv 80 — so no single class can finish it unaided.

4 of the 9 raw materials come out of the ground, and 3 of them are time-gated: Prismstone (4:00, 16:00), Raw Onyx (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Prismatic Ingot has the widest use: 79 recipes call for it, spanning five of the eight crafting classes.