The Big Red

One allowance here buys 45,340 EXP, which places it 6th of the 6 Lv 45 Goldsmith tradecraft leves that record EXP. The best of them, Gold Is So Last Year, returns 137,400 EXP for the same allowance, 203% more.

Across that rung the return runs from 45,340 EXP to 137,400 EXP per allowance — 5 distinct figures spanning 203%, so the wrong pick leaves 92,060 EXP of the allowance unspent.

On whether to wait: the best Lv 50 Goldsmith tradecraft leve returns 334,080 EXP per allowance, 143% more than the best on this rung, while the Lv 40 rung behind tops out at 79,510 EXP.

At Lv 45 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 98,250 EXP per allowance, the 4 Fieldcraft ones 733,026 EXP, which puts this leve 54% below its own category's average.

Red Coral Necklace ×1 is a Lv 45 Goldsmith recipe, 2 steps deep through 1 intermediate, costing 5 units of raw material and 13 crystals.

Handing that in returns 9,068 EXP and 55 gil for every unit of raw material the order swallows, and the tree needs Goldsmith and Weaver.

The record carries a repeats value of 2. This site reads that as 2 further turn-ins on the same leve — an assumption, because the source data defines no meaning for the field — which would put the ceiling at 136,020 EXP and 831 gil for the 1 allowance it costs, or 136,020 EXP per allowance.