Purity is of course the most important consideration when buying gold jewelry, but do you know that when buying small gold ornaments of less than 12 grams, the purity of gold ornaments may not be as noted. Gold jewelry needs to use welding process when it is used to make various shapes. Therefore, the solder joints in some jewelry must be normal and normal, but these solder joint components are not pure gold. According to national standards, the purity of the solder joints does not need to be marked on the stamp or label.
NO1. logo
A logo printed on the jewellery (ie jewellery imprint) containing the manufacturer's code, purity, material, and the weight of the diamond-studded master diamond (0.10 ct or more). In addition, the label and the ticket for the sale of jewelry should have: the name of the jewelry, the manufacturer (or code) and the address, weight, content, price, etc.
NO2. Appearance quality
The basic requirements of jewelry are: smooth surface, flawless, scratching, hammer and other processing marks. Edges and sharp corners should be smooth, burr-free, not tied, not scratched, no pores, no inclusions; the surface of the castings is smooth, no blisters, no cracks, no obvious defects; strong welding, no soldering, no soldering and Apparently welded enamel; the surface treatment is uniform in color, bright and waterless.
NO3. Jewelry weight
Precious metal jewellery is calculated by weight and processing fee, and the weight of the jewelry is one of the important indicators. The tolerance of each piece of gold jewelry is 0.01 grams; the tolerance of silver jewelry is 0.04 grams positive and 0.05 grams negative.
What should I pay attention to when buying precious metals? If you identify gold, the easiest way is to burn the jewellery and cool it. If it is still yellow, it is gold. If it is black, it is fake.
There is also a common saying:
Don't try cheap!
Don't try cheap!
Don't be cheap!
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