Opal Choker of Fending

Taken all the way down to base materials, one Opal Choker of Fending is 3 crafting steps deep and needs 6 intermediates — Dragon Leather ×1, Grade 1 Vitality Dissolvent ×1, Hardsilver Ingot ×1 and 3 others — which resolve to 10 distinct raw materials totalling 27 units, plus 37 crystals.

That bill outweighs 9,763 of the 13,602 recipes tracked here and 1,605 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 28 are burned by the intermediates, so the real crystal cost is 24 Wind Crystal, 5 Earth Crystal, 4 Fire Crystal and 1 other kind.

The chain crosses three disciplines — Goldsmith to Lv 57, Leatherworker to Lv 56 and Alchemist to Lv 54 — so no single class can finish it unaided.

7 of the 10 raw materials come out of the ground, and one of them is time-gated: Volcanic Rock Salt (17:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Hardsilver Ingot has the widest use: 117 recipes call for it, spanning seven of the eight crafting classes.