Star Spinel Ring of Healing

Taken all the way down to base materials, one Star Spinel Ring of Healing is 2 crafting steps deep and needs 4 intermediates — Durium Nugget ×1, Grade 1 Reisui of Mind ×1, Koppranickel Nugget ×1 and 1 other — which resolve to 10 distinct raw materials totalling 20 units, plus 22 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 1,141 of the 2,216 Goldsmith ones, and 4,464 recipes nest deeper.

Only 7 of those crystals go into the final step; the other 15 are burned by the intermediates, so the real crystal cost is 15 Wind Crystal, 4 Water Crystal and 3 Fire Crystal.

The chain crosses two disciplines — Goldsmith to Lv 64 and Alchemist to Lv 63 — so no single class can finish it unaided.

All 10 raw materials are gathered, and one of them is time-gated: Raw Star Spinel (0:00, 12:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Durium Nugget has the widest use: 142 recipes call for it, spanning seven of the eight crafting classes.