What to pay attention to when buying precious metals

I believe that many consumers are also experienced in buying precious metals. But in addition to some common sense, what other aspects should be paid special attention to? What should be paid attention to when buying precious metals? I believe that many consumers are also experienced in buying precious metals. But in addition to some common sense, what other aspects should be paid special attention to? What should be paid attention to when buying precious metals? When buying gold jewelry, purity is of course the most important consideration, but did you know that when buying small pieces of gold jewelry under 12 grams, the purity of gold jewelry may not be as marked. It is necessary and normal for the solder joints in some jewellery to have solder joints, but these solder joints are not pure gold. According to national standards, the purity of the solder joints does not need to be marked in the imprint or label. 1. Logo The logo printed on the jewelry (ie jewelry imprint), including the manufacturer's code, purity, material, and the weight of the main diamond (0.10 carats or more) of the diamond-encrusted jewelry. In addition, the labels and bills for selling jewelry should include: jewelry name, manufacturer (or code) and address, weight, content, price, etc. Buy with caution if the signs are not complete. 2. The basic requirements for the appearance quality of jewelry are: the surface is smooth and clean, without filing, scraping, hammering and other processing traces. The edges and sharp corners should be smooth, free of burrs, no punctures, no scratches, no pores, and no inclusions; the surface of the casting should be smooth, free of blisters, cracks, and no obvious defects; the welding should be firm, no false welding, missing welding and Obvious welding scar; the surface treatment has the same color, bright and no water stains. 3. Check the weight of jewelry. The price of precious metal jewelry is calculated based on weight and processing fee. Jewelry weight is one of the important indicators. The tolerance for each piece of gold jewelry is 0.01 grams; the tolerance for silver jewelry is positive 0.04 grams and negative 0.05 grams. What should I pay attention to when buying precious metals? If you want to identify gold, the simplest method is the fire method, that is, the jewelry is burned red and then cooled. If it is still yellow, it is gold, and if it is black, it is fake. Previous: Which gems are similar to rubies Next: How big a diamond has a grading certificate