He Has His Quartz

One allowance here buys 67,730 EXP, the best of the 6 Lv 30 Goldsmith tradecraft leves that record EXP: the runner-up manages 52,220 EXP, 23% less.

Across that rung the return runs from 25,900 EXP to 67,730 EXP per allowance — 4 distinct figures spanning 162%, so the wrong pick leaves 41,830 EXP of the allowance unspent.

On whether to wait: the best Lv 35 Goldsmith tradecraft leve returns 72,600 EXP per allowance, 7% more than the best on this rung, while the Lv 25 rung behind tops out at 36,390 EXP.

At Lv 30 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 44,832 EXP per allowance, the 4 Fieldcraft ones 275,323 EXP, which puts this leve 51% above its own category's average.

Gil ranks it differently: 463 gil per allowance is 3rd of 6 on the same rung against 1st on EXP, with the best there paying 532 gil.

Silver Circlet (Goshenite) ×1 is a Lv 33 Goldsmith recipe, 2 steps deep through 2 intermediates, costing 10 units of raw material and 16 crystals.

Handing that in returns 6,773 EXP and 46 gil for every unit of raw material the order swallows.