Star Ruby Music Box

Taken all the way down to base materials, one Star Ruby Music Box is 3 crafting steps deep and needs 7 intermediates — Aurum Regis Nugget ×5, Aurum Regis Cylinder ×1, Hardsilver Ingot ×1 and 4 others — which resolve to 9 distinct raw materials totalling 49 units, plus 61 crystals.

That bill outweighs 12,749 of the 13,602 recipes tracked here and 2,059 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 58 are burned by the intermediates, so the real crystal cost is 48 Wind Crystal, 5 Fire Crystal, 5 Wind Shard and 2 other kinds.

Every step is Goldsmith work, from a Lv 40 intermediate up to the Lv 60 finish, so one class covers the whole chain.

8 of the 9 raw materials come out of the ground, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.