Jewelry is rich, you can cut stones with a 5G knife, and those with sw ring drawings can be changed.
After accumulating some refined gold ore, it can be beneficiated through jewelry with additional skills, and the product will produce refined gold powder. Four refined gold powders+1 native soil can synthesize one refined mercury gold. It is suggested that 12 pieces be packaged for sale. The complimentary products randomly produce some emeralds and sapphires. Sapphire can be sold, emerald can be sold if the market price is good, or the elemental materials can be stored for alchemy and synthesis, and then sold after cutting.
If you have a certain start-up capital, you can buy brand gems at the reserve price, such as 16G, cut them and sell them at the market price to earn the difference.