1) Gemstone processing was excavated from primary ore before 300 skill level, which is difficult to obtain. Before 300, I basically relied on making rings and things like that to punch in. Some of the gems after 300 are made of gems. Have a prospecting skill, you can find precious stones (magic iron ore, refined gold ore, etc. ) comes from ore. It takes five pieces of unmelted ore to explore a mine. Some gems are excavated during mining and can be directly cut into finished gems.
You haven't learned how to mine, so you can only buy precious stones or ask your friends who mine to support you.
2) Enchantments are basically useless without advanced formulas, because valuable enchantments are all learned by formulas (only a few are learned from trainers), so you have to brush a lot of FB and prestige, and the prestige map is basically brushed, which is not very profitable. However, it is more convenient to FM yourself at ordinary times. If you are not a professional player or the chief FM teacher of the trade union, learning FM is just for fun.
Jewelry processing is a very useful skill. Now, all good equipment has jacks, so there is a lot of money left to cut your own gems, and you can still sell them. The demand is great, the formula is very easy to use, and it can make a profit for itself.
Leather-making can be used as purple equipment and armor plate (to improve the equipment attributes), but the purple equipment made by ourselves can be worn together without a big FB. With the trade union, FB will wither or be a battlefield, and JJC's equipment is much better than its own.
As for the armor plate, the sales volume is average, but it can be made by itself, but it is not used much.