Goldsmith's Doublet ★

Taken all the way down to base materials, one Goldsmith's Doublet is 3 crafting steps deep and needs 6 intermediates — Electrum Ingot ×2, Undyed Felt ×2, Silk Thread ×1 and 3 others — which resolve to 8 distinct raw materials totalling 23 units, plus 42 crystals.

That bill outweighs 8,647 of the 13,602 recipes tracked here and 1,141 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 37 are burned by the intermediates, so the real crystal cost is 20 Wind Shard, 10 Lightning Shard, 6 Lightning Crystal and 2 other kinds.

The chain crosses three disciplines — Weaver to Lv 50, Goldsmith to Lv 42 and Alchemist to Lv 25 — so no single class can finish it unaided.

6 of the 8 raw materials come out of the ground, and one of them is time-gated: Silkworm Cocoon (1:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Electrum Ingot has the widest use: 234 recipes call for it, spanning seven of the eight crafting classes.