As a high Veteran Goldsmither, I can tell you that we make these at cost or less to lvl our goldsmithing, these are not a money maker. If you want to calculate cost, figure out how much 1 fire crystal, 1 earth crystal, 1 wind crystal, 2 Orichalcum Ingots, and 1 elemental ore costs. You will soon see that the price of these are driven by the costs of the orichalcum (miners/ect) and elemental ores (gardeners/ect).