Ametrine Ring of Crafting

Taken all the way down to base materials, one Ametrine Ring of Crafting is 3 crafting steps deep and needs 3 intermediates — Ametrine ×1, Dark Hempen Cloth ×1 and Chloroschist Whetstone ×1 — which resolve to 3 distinct raw materials totalling 12 units, plus 39 crystals.

That bill outweighs 6,221 of the 13,602 recipes tracked here and 862 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 15 of those crystals go into the final step; the other 24 are burned by the intermediates, so the real crystal cost is 24 Wind Crystal, 8 Lightning Crystal and 7 Fire Crystal.

The chain crosses two disciplines — Goldsmith to Lv 81 and Weaver to Lv 81 — 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, Ametrine has the widest use: 85 recipes call for it, spanning six of the eight crafting classes.