1 thought on “How to buy gold jewelry in the jewelry industry identification status is chaotic”
Bobbie
The lack of domestic gold and silver jewelry inspection supervision. Due to the large number of inspection and appraisal agencies, as a merchant, there are also many options. You can choose the appraisal agency for yourself according to the principle of "maximizing interests". ThesenIn order to compete, the appraisal agencies will also have mutual prices, or they will secretly relax the test standards for fixed merchants, such as slightly higher levels. If the testist is specific, there is also a "humanistic appraisal" operation space.nAt present, illegal elements are commonly used in the society to manufacture fake cards and imitation stamps, and use thin gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality.nAt present, the identification status of the domestic jewelry industry is chaotic, and there are many institutions with identification qualifications, and the standards are not uniform. We can generally divide these appraisal agencies into three categories:nThe first category is the national inspection. NGTC, it belongs to the Jewelry and Jewelry Management Center of the Ministry of Land and Resources. It is the formulator of the Chinese jewelry industry standard and the most authoritative testing agency. This institution also trains registered jewelery jadeite inspectors and registered asset appraisers.nThe second category is provincial inspection. That is, various provincial jewelry and jade appraisal centers. Such as a province's jewelry and jade and precious metal testing center, a provincial treasure jade appraisal center, etc.nThe third category is colleges and other testing agencies. Such as a college gem testing center, an institutional Baoyuzhu supervision and testing center, a provincial technical supervision jewelry quality inspection station, etc. As we all know, the main indicator of K gold is the content of gold, which can be determined directly through the machine. For example, 18K gold, the gold content must be 75%to pass the qualification.nMonitoring and appraisal passed. It is understood that there are many ways to test the gold content, which can be divided into chemical analysis methods and instrument analysis methods. Depending on whether the jewelry is destroyed during the testing process, it can be divided into non -destructive detection method and loss detectionnLaw. There are two types of non -destructive detection methods: X fluorescent spectrum method and fire testing method. The fire test method is the current national detection method. There is no scientific basis for the so -called "spraying with a musket". Various stores or professional counters are soldnGold jewelry, generally with the inspection of authoritative inspection agencies, proves that consumers should pay attention to verification when purchasing. Consumers must carefully observe the imprint of the jewelry when purchasing. Gold jewelry marks should be clear and easy to identify. The content must include the material namenCalculating and content. Such as "foot gold", "Thousands of Gold", "G18K" of gold jewelry, "foot silver", "S925" of silver jewelry, "foot platinum", "PT950" of platinum jewelry, etc. Seal "18kgp" tablenThe jewelry is a gold -plated jewelry, not a precious metal jewelry. The mark "18K Platinum" indicates that the accessory is a white gold jewelry with 75%gold content.n(1) See color: the higher the purity of the gold jewelry, the deeper the color.n(2) Oblique weight: Gold is more than 40%heavier than the same volume, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.n(3) Look at the hardness: pure gold is soft, hard, and easy to bend. The more copper, the harder, and it is easy to break.n(4) Listening to the sound: Throw the real gold on the hard ground, and it will make a tap sound. There is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.n(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with the fire (do not melt the jewelry). After cooling, observe the color change. If the surface is still the original golden color is pure gold; It is not pure gold.n(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and pokes, such as "24K" indicates "foot red" or "foot gold"; 18K gold, the word "18K" is marked; 10K, you cannot call the K -printed number according to regulations.nExperts suggest: Consumers should buy gold jewelry from regular shopping malls and ask for relevant inspection certificates. If you are not assured, you can go to the local authoritative testing department to "test the right body", if you find that the insufficient gold content should be found, you should use the inspection report to propose a repair, exchange or return to the merchant. Shiyuan Jinxing Du Shuangyuan
The lack of domestic gold and silver jewelry inspection supervision. Due to the large number of inspection and appraisal agencies, as a merchant, there are also many options. You can choose the appraisal agency for yourself according to the principle of "maximizing interests". ThesenIn order to compete, the appraisal agencies will also have mutual prices, or they will secretly relax the test standards for fixed merchants, such as slightly higher levels. If the testist is specific, there is also a "humanistic appraisal" operation space.nAt present, illegal elements are commonly used in the society to manufacture fake cards and imitation stamps, and use thin gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality.nAt present, the identification status of the domestic jewelry industry is chaotic, and there are many institutions with identification qualifications, and the standards are not uniform. We can generally divide these appraisal agencies into three categories:nThe first category is the national inspection. NGTC, it belongs to the Jewelry and Jewelry Management Center of the Ministry of Land and Resources. It is the formulator of the Chinese jewelry industry standard and the most authoritative testing agency. This institution also trains registered jewelery jadeite inspectors and registered asset appraisers.nThe second category is provincial inspection. That is, various provincial jewelry and jade appraisal centers. Such as a province's jewelry and jade and precious metal testing center, a provincial treasure jade appraisal center, etc.nThe third category is colleges and other testing agencies. Such as a college gem testing center, an institutional Baoyuzhu supervision and testing center, a provincial technical supervision jewelry quality inspection station, etc. As we all know, the main indicator of K gold is the content of gold, which can be determined directly through the machine. For example, 18K gold, the gold content must be 75%to pass the qualification.nMonitoring and appraisal passed. It is understood that there are many ways to test the gold content, which can be divided into chemical analysis methods and instrument analysis methods. Depending on whether the jewelry is destroyed during the testing process, it can be divided into non -destructive detection method and loss detectionnLaw. There are two types of non -destructive detection methods: X fluorescent spectrum method and fire testing method. The fire test method is the current national detection method. There is no scientific basis for the so -called "spraying with a musket". Various stores or professional counters are soldnGold jewelry, generally with the inspection of authoritative inspection agencies, proves that consumers should pay attention to verification when purchasing. Consumers must carefully observe the imprint of the jewelry when purchasing. Gold jewelry marks should be clear and easy to identify. The content must include the material namenCalculating and content. Such as "foot gold", "Thousands of Gold", "G18K" of gold jewelry, "foot silver", "S925" of silver jewelry, "foot platinum", "PT950" of platinum jewelry, etc. Seal "18kgp" tablenThe jewelry is a gold -plated jewelry, not a precious metal jewelry. The mark "18K Platinum" indicates that the accessory is a white gold jewelry with 75%gold content.n(1) See color: the higher the purity of the gold jewelry, the deeper the color.n(2) Oblique weight: Gold is more than 40%heavier than the same volume, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.n(3) Look at the hardness: pure gold is soft, hard, and easy to bend. The more copper, the harder, and it is easy to break.n(4) Listening to the sound: Throw the real gold on the hard ground, and it will make a tap sound. There is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.n(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with the fire (do not melt the jewelry). After cooling, observe the color change. If the surface is still the original golden color is pure gold; It is not pure gold.n(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and pokes, such as "24K" indicates "foot red" or "foot gold"; 18K gold, the word "18K" is marked; 10K, you cannot call the K -printed number according to regulations.nExperts suggest: Consumers should buy gold jewelry from regular shopping malls and ask for relevant inspection certificates. If you are not assured, you can go to the local authoritative testing department to "test the right body", if you find that the insufficient gold content should be found, you should use the inspection report to propose a repair, exchange or return to the merchant. Shiyuan Jinxing Du Shuangyuan