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The National Gemstone examiner Xie Shanshan view the goods, Mr. Zhang optional jade and sent to the laboratory with a professional instrument to detect, in order to determine the quality. Manual identification of the site as a reference only. To purchase relief Kam Po problems, recommends that buyers choose the best jewelry with a certificate.real life, the audience and a few similar to Mr. Zhang so inexperienced. Whether to buy what kind of jewelry, and understanding necessary to identify knowledge, you can avoid a lot of trouble and embarrassment. Wuzhou College the artificial gems design and testing laboratories senior engineer Chen Bingzhong, live as buy jewelry tips:tips: Look no ghosting. No ghosting through the lights, diamond crystal double Chak color ghosting, the emerald surface have flies, winglike reflective.Tip 2: Hand weigh estimated weight.
A variety of precious stones because the density is not the same, not the same weight. Feel heavier gem the better the quality, the higher the value.Tip three: to see internal growth lines. Is to make use of lighting, view gems internal inclusions. In general, each natural gemstone inclusions are not the same. Mist similar to the most common inclusions in gemstones, crystal inclusions are often elongated bubbles, glass circular bubble.In addition, a lot of people like to use gems the glass to identify the authenticity,, but Chen Bingzhong said, do not advocate using this approach, because doing so would damage the gem. Identification of precious jewelry, must go to obtain the relevant qualifications accreditation bodies were identified in order to obtain legal identification.
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