Four points for buying gold jewelry

Affected by the successive dive of international gold prices, domestic gold prices have also been falling all the way in the first half of this year. At the beginning of July, the price of gold jewellery in various regions fell below 300 yuan. On July 18th, despite the rebound of international gold prices, although gold jewellery rose all the way, it still fell by more than 30% over the same period of last year. With this rare opportunity, many citizens will choose to purchase gold jewelry. But in order to avoid being deceived, how should we buy it?

Identify color: As the saying goes, gold is "seven green, eight yellow, nine purple, ten red." Experts believe that 70% of its gold-containing jewellery is yellow and green, 80% gold is yellow, and 90% gold is yellow and purple, and gold is 10% red. The pure gold is softer and generally not used for inlaid jewelry. Therefore, where inlaid gold ornaments claim to be 24K, there must be fraud.

掂 Weight: The proportion of gold is 19.3 g/cm3, and the fineness and weight ratio are relatively large. When the ratio is close to 19.3, the higher the pure gold content is. When the specific gravity is 18.5, the gold content is 95%, when the value is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the quality of the jewelry can be known. However, most people can feel a sense of sedimentation.

See the rhyme: high-quality jewelry, thrown on the concrete floor there will be boring buzz, sound and no rhyme, no power, commonly known as "death." On the contrary, the low-quality gold ornaments are thrown on the concrete floor with rhyme and sharp sounds, and they bounce back slightly.

Soft and hard test: the higher the quality of the gold jewelry, the softer and the more inelastic, the real gold will have light marks with teeth bites or needle strokes, and the hand will have no lines, and will not change color after burning (not very high temperature). The opposite is true for low and false.