Opal Earrings of Healing

Taken all the way down to base materials, one Opal Earrings of Healing is 3 crafting steps deep and needs 5 intermediates — Opal ×3, Grade 1 Mind Dissolvent ×1, Hardsilver Ingot ×1 and 2 others — which resolve to 8 distinct raw materials totalling 35 units, plus 52 crystals.

That bill outweighs 11,223 of the 13,602 recipes tracked here and 1,790 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 43 are burned by the intermediates, so the real crystal cost is 44 Wind Crystal, 4 Fire Crystal and 4 Water Crystal.

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

7 of the 8 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.