Mounted Flower Vase

Taken all the way down to base materials, one Mounted Flower Vase is 2 crafting steps deep and needs 2 intermediates — Brass Ingot ×3 and Cut Stone ×2 — which resolve to 3 distinct raw materials totalling 15 units, plus 14 crystals.

That bill outweighs 6,735 of the 13,602 recipes tracked here and 948 of the 2,216 Goldsmith ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 9 are burned by the intermediates, so the real crystal cost is 12 Wind Shard and 2 Fire Shard.

Every step is Goldsmith work, so one class covers the whole chain.

One intermediate outranks the result: Cut Stone is a Lv 30 Goldsmith recipe feeding a Lv 29 craft, so that step, not the last one, is the real gate.

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