Is it permissible to buy and wear a gold bar engraved with the image of "Fortuna," who was the Roman goddess of luck, especially since I initially thought it was the image of a bride?

Such drawings involve two issues:

First: They are drawings of a human being, and drawing animate beings is prohibited.

Second: They symbolize a pagan god, and this is something a Muslim avoids.

Therefore, the questioner must refrain from purchasing them.