These two are similar, with good returns and expensive upgrades, but it seems that jewelry makes more money than engineering. Engineering can be used as equipment and a pile of toys. In addition to expensive mounts, there are also engineering-specific enchantments. Engineering enchantment is very powerful and can be superimposed with ordinary enchantment, so the income is very high. Jewelry can be inserted with two super-high gems, and the income is better, but with the emergence of purple gems in the future, the advantages of jewelry are not so strong. But jewelry is more profitable. You can cut gems from the ore and sell them to us, so that you can gradually get a lot of income.