Recently, the National Jewelry Quality Supervision and Inspection Center (NGTC) and the Shanghai Diamond Exchange (SDE) and other seven domestic and international jewelry industry organizations jointly issued the "Diamond Terminology Guide" to encourage all sectors, institutions, organizations, and Merchants and retailers use clear and understandable diamond and synthetic diamond terms in a comprehensive, fair and effective manner to facilitate the effective distinction between natural and synthetic diamonds in the communication between industry and consumers, involving or describing diamonds, synthetic diamonds and A generic reference document is provided for imitation diamonds.

A small diamond hides the doorway, and only the experts who are skilled in it can tell the secrets of the gems to you. Today, Xiao Bian hereby presents an article from the "Quality and Standardization" character column to learn the story behind the jewelry identification and appreciate the essence of the craftsman spirit.

In the Jewelry and Jade Laboratory of Shanghai Metrology and Testing Technology Research Institute (hereinafter referred to as “laboratory”), the laboratory director Tang Hongyun is wearing a white coat and is identifying jewels and jade. Since 1984, she has been involved in the detection and research of rock minerals, jewellery and jade, and has been in existence for 34 years. Through a series of scientific studies, she established a systematic method to identify various types of jewels and jade and a more detailed mineral spectroscopy library, filling the domestic gap.

鉴定珠宝玉石,珠宝玉石

Tang Hongyun, professor-level senior engineer, member of the National Jewelry and Jade Standardization Technical Committee (SAC/TC298), member of the National Aquatic Standardization Technical Committee Pearl Sub-Technical Committee (SAC/TC156/SC9), and laboratory qualification appraiser (provincial level). He has won many awards such as “The Third Prize of the 2015 China Analytical Testing Association Science and Technology Award (CAIA Award)”; it has overcome the identification problem of the cause of Hetian Yuzi jade color, and has become one of the few jewelry in China that can accurately identify Hetian Yuzi. Appraisers; become the main writers of the vocational skills training and assessment textbooks - "Jade Jade Identification Worker"; in 2016, successfully applied for the recommended national standards for "Amber Identification and Classification", and made the national ability to detect amber technology in the country. contribution.

Industry expert: witnessing the national guest ceremony, conquering the problem of the skin color of Tianzi jade

In 2005, the laboratory received a commission for the inspection of seven kinds of gems, such as diamonds, rubies, garnets and pearls, which were set on the hull of a national banquet, “Zheng He Seven Baby Boat”. In order to reduce the risk of dismantling and dismantling this country guest, the client requested the appraiser to go directly to the appraisal. This means that the appraisers must give up using all kinds of advanced equipment and equipment, and rely on a 10x magnifying glass and a flashlight to watch the inlaid gemstones on the hull equivalent to the size of a common pencil case. Tang Hongyun relies on decades of knowledge of all kinds of jewellery and jade knowledge, the accumulation of appraisal experience and the tireless and repeated research on cutting-edge knowledge. In a short period of time, with the "hard-eye" of "hardening", I found out " The clues, to find useful identification data, to complete the task satisfactorily.

In addition to being able to witness jewels and jade, people familiar with Tang Hongyun know that she still has an achievement, that is, to overcome the problem of the origin of Hetianziyu skin color. As the saying goes: "Porcelain looks at the bottom, jade looks at the skin." Jade skin refers to the connection and indication of the appearance of Yuli. It can express the connotation, image and beauty of jade, making jade more spiritual, but its cause has always been an unsolved problem. On the basis of cumulative identification of more than 50,000 Hetian jade, Tang Hongyun has overcome the identification problem with the accumulation of practical experience and the assistance of advanced testing methods, and she has become one of the few appraisers in the country who have mastered this stunt. Amazing.

"Sherlock Holmes": Quality workers must seriously protect the interests of consumers

The appraiser is "Sherlock Holmes". In the past 34 years, every piece of jewellery and jade, Tang Hongyun has been repeatedly considered, with years of professional knowledge, appraisal experience and necessary technology to prove the authenticity, and finally produce a true and reliable appraisal report. Although the testing organization does not directly participate in the counterfeiting as the law enforcement agencies, the test report issued by it is a powerful basis for consumers and law enforcement agencies to distinguish between true and false. While protecting consumer rights, it has hit bad businesses. “Quality workers must seriously protect the interests of consumers,” Tang Hongyun often puts this sentence on his lips. During the annual “Lei Feng Day”, “Consumer Rights Protection Day”, “World Measurement Day” and “Quality Month”, as a member of the Shanghai Metrology Test Volunteer Team, she always takes time to enter the community to provide the public with Free identification of jewelry and jade services. Although the service of the day was tired, she always felt very warm when she saw the public leaving with a satisfied smile.

Selfless leader: Li Siguang, who is united as the people, is the idol of life

Tang Hongyun was very interested in geography since he was a child, and Li Siguang, a geologist who focused on the people, was an idol of life. The jewels and jade that are full of spirituality are like prisms, reflecting the colorful world. To this day, Tang Hongyun still remembers the first time she took a geological hammer, carrying a large backpack and collecting ore in the wild; I also remember the time when I was camping in the plateau for the first time, facing the stars. Secretly promised the "to fight for the ideal for life" vows. In the early days of the laboratory, she unreservedly passed on the many years of rock, mineral, gemstone identification theory and testing skills to young colleagues, prompting them to be competent and mobilize their burdens as soon as possible. In the work, Tang Hongyun enthusiastically gave guidance to colleagues from the operation of equipment and equipment, the preparation of certificate reports, the declaration and research of scientific research projects, and the details of daily work processes. Colleagues feel that it is a blessing to work with her who is not on the shelf and the hottest. In the eyes of Tang Hongyun, when young people are so hard-working, they feel more gratified and feel responsible for bringing them.

In 2016, Tang Hongyun led this young team and successfully applied for the National Standards Project for Amber Identification and Classification, which will improve the detection of amber technology and capabilities nationwide. For this standard, she traveled around, leading the team to the production and distribution centers of domestic amber, collecting amber samples in various markets. Also as the main author, he wrote about 466,000 words of "Jade and Jade Identification Worker". The book is well illustrated and detailed, reflecting the basic knowledge of jewellery and jade identification, the latest practical knowledge and operational skills. For this vocational skill training and assessment teaching materials, even if it was in the cold winter, she still worked hard every night and worked until the early morning of the next day.

The ancients said: "The decoration of a piece of money, the price of surplus gold; the clothing of the scorpion, and the treasure of the four seas." Throughout the ages, no matter how the times change, jewellery and jade is always the heart of people's eyes. On the one hand, the price of jewellery and jade is constantly rising. On the other hand, with the development of science and technology, the new synthetic technology has made this market even more mixed. Fortunately, appraisers with professional training, professional ethics and evaluation standards use a pair of eyes to open up the fog and protect the interests of consumers.

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