In the future, consumers can quickly identify the authenticity when buying precious items such as jade and diamonds. The reporter learned from the National Jewelry and Jade Quality Supervision and Inspection Center (NGTC, hereinafter referred to as the National Inspection Center) yesterday that the center and Bao Zhongxie Gemstone Testing Center were formally merged, and the two sides will launch a new version of the gem appraisal certificate on June 1 day. As the only national quality inspection institution for jewelry and jade, Mr. Zhang, the relevant person in charge of the National Inspection Center, introduced that compared with the old certificate, the issuing institution of the new certificate was changed from the National Jewelry and Jade Quality Supervision and Inspection Center and the Xiebao Jade Testing Center to joint certification, which has special anti-counterfeiting function. Consumers can check the authenticity of certificates through Internet, SMS and telephone voice. Mr. Zhang introduced that at present, there are some cases in the Asian market where the jewelry and jade appraisal certificates made by international appraisal institutions are counterfeited. The fraud found in the domestic market is mainly to copy the real certificate, but the identification certificate can only be a certificate corresponding to a product. For example, gold coin products have already issued the same batch of products. In order to save costs, manufacturers only make one appraisal certificate, and all other products are duplicate certificates. This is actually cheating consumers, and the new certificate has many straight lines to prevent copying, and one is connected by "NGTC" mini-letters. If the manufacturer copies or prints or scans, the straight line will break, and the line with miniature letters can't see any letters, so consumers can easily distinguish its authenticity. In addition, the new certificate has increased the types of certificates. In addition to retaining the original paper certificate, a mid-range folding certificate and a small 4C-level rough diamond grading certificate have been added to meet different levels of jewelry and different inspection requirements. Lawyer Zhang said that due to the high cost of identification, many merchants are unwilling to identify the bare diamonds below carat diamonds for countless times according to the requirements of carat diamonds. To this end, the National Inspection Center has issued a small 4C grading certificate for loose diamonds, which has fewer testing items, but ensures that consumers can see the basic situation of the products at a glance. It is understood that the old certificate and the new certificate have the same legal effect and are valid for a long time. The National Jewelry and Jade Quality Supervision and Inspection Center (hereinafter referred to as the National Inspection Center) is a national-level jewelry and jade quality inspection institution authorized by law. It has passed the metrological certification and authorization of national product quality supervision and inspection institutions and the laboratory approval of ISO/IEC 17025, and is the authoritative organization for jewelry and jade jewelry inspection in China. The center is responsible for drafting the national standard for jewelry testing in China, and for revising and interpreting the standard. The center provides testing services for domestic jewelry processing, sales and consumers, and is the first jewelry testing institution in China to fully realize network management. The center undertakes the supervision, spot check, entrusted inspection and arbitration inspection of quality inspection, industry and commerce, public security, justice, customs and other government departments at all levels. The quality policy of this center is scientific, fair, accurate and efficient. Based on the service tenet of quality first, reputation first and service first, this center provides good technical services for all walks of life. On June 1 day, 2007, the center officially launched the new certificate. Thank you for your support, trust, concern and understanding of the work of the center, and please continue to pay attention to the development of the new certificate to ensure that the consumer rights of jewelry and jade jewelry will not be infringed in the future. [Difference between the new version and the old version]: 1, certificate types are increased: the new version retains the original paper card certificate, while adding a mid-range folding certificate and a small 4C-level rough diamond grading certificate to correspond to different grades of jewelry and different inspection requirements. 2. logo adjustment of certification body: the original CNAL was renamed CNAS. 3. Fine-tuning logo: On the basis of the original logo, make adjustments to make it thicker and more stable, and add anti-counterfeiting function. 4. Design emphasis: The cover of the new certificate is lined with the words "certificate" which embodies national characteristics. At the same time, the whole uses the same color gradient style, and different types of certificates have different colors. 5. Issuing agency: The new certificate is jointly issued by the National Gemstone Quality Supervision and Inspection Center and Bao Zhongxie Gemstone Testing Center. 6. New anti-counterfeiting function: In addition to conventional anti-counterfeiting means, the new certificate also adopts a series of new anti-counterfeiting technologies. 7. Authenticity query: SMS query and mobile phone voice query services for certificate authenticity have been added. This article is transferred from: Jewelry Shang