Consumer Ms. Wu recently purchased an 18K inlaid jade necklace online, but when she got the inspection at the National Jewelry Testing Center in Hualin Jade City, Guangzhou, she was told that the jade must be removed to check if the necklace is 18K. Ms. Wu, who did not want to destroy her jewelry, had to give up testing.
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The person in charge of the gold repurchase test of Dongshan Department Store in Guangzhou also said: "We can only detect the gold content of the jewelry surface by investing in an advanced testing instrument of more than 100,000 yuan. The interior of the jewelry is undetectable. The jewellery gold must be dismantled to be able to be tested, and the entire jewellery needs to be melted to detect the purity in order to accurately detect the purity.†The person in charge also revealed that he had encountered several repurchase of gold jewelry adulteration. “The surface is gold, the center is silver, and it must be cut to find it is fake.â€
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