Lignum Vitae Necklace

Taken all the way down to base materials, one Lignum Vitae Necklace is 2 crafting steps deep and needs 3 intermediates — Lignum Vitae Lumber ×2, Dwarven Mythril Nugget ×1 and Iridescent Silk Thread ×1 — which resolve to 5 distinct raw materials totalling 18 units, plus 38 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 740 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 14 of those crystals go into the final step; the other 24 are burned by the intermediates, so the real crystal cost is 28 Wind Crystal, 7 Ice Crystal and 3 Lightning Crystal.

The chain crosses three disciplines — Carpenter to Lv 79, Goldsmith to Lv 78 and Weaver to Lv 72 — so no single class can finish it unaided.

All 5 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.