Lignum Vitae Ring

Taken all the way down to base materials, one Lignum Vitae Ring is 2 crafting steps deep and needs 2 intermediates — Dwarven Mythril Nugget ×1 and Lignum Vitae Lumber ×1 — which resolve to 3 distinct raw materials totalling 9 units, plus 28 crystals.

That bill outweighs 5,492 of the 13,602 recipes tracked here and 549 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 14 of those crystals go into the final step; the other 14 are burned by the intermediates, so the real crystal cost is 21 Wind Crystal and 7 Ice Crystal.

The chain crosses two disciplines — Carpenter to Lv 79 and Goldsmith to Lv 78 — so no single class can finish it unaided.

All 3 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Dwarven Mythril Nugget has the widest use: 154 recipes call for it, spanning seven of the eight crafting classes.