In order to enhance the international competitiveness of China's jewellery and jade products, regulate the price order in the domestic market, and stabilize consumer confidence, China is accelerating the work of standardizing and revising jewelry jade products. The National Jewellery and Stone Standardization Technical Committee has organized the compilation of the national standards for “Fertilizer Grade†and “Method for Measuring Pearl Bead Layer Thicknessâ€.
Identifying the quality level of the gem will have a "magic weapon"
Near the New Year, various discount and promotion activities in the jewellery and jade market have dazzled many consumers. How to distinguish the grades of such products, to buy value for money jewelry has always been an important issue plaguing people. At present, it has entered the final approval stage of the 4 jade jewelry standards - "Jade classification", "the method of measuring the thickness of pearl beads," "a large particle diamond colorimetric stone" and "Chinese freshwater pearl standard sample", Will solve this problem to a great extent.
Among the four national standards that make up for the lack of measurement, the “Jade Grade†and “Method for measuring the thickness of pearl beads†are the most noticeable. As a big country of jade culture, China's national standard on the classification of jade has always been a blank. Wang Manjun, director of the Research Department of Jewelry and Jewelry Management Center, told reporters that grading jade is an important prerequisite for standardizing the jade market. However, due to the influence of such factors as the color, diversity of species, and the high price of samples, the development of jade grading standards is The four most difficult standards. Previously only Yunnan had introduced a relevant local standard.
Through several years of extensive market research and a large amount of scientific research, the “Jade Grade†development team started with test methods such as the Jade light source, unit transmittance, and chroma, combined with analysis methods such as colorimetry and sensory analysis to solve problems. Multiple professional technical problems. Wang Manjun said that the “Jade Grade†national standard is the authoritative technical standard for the first jade in China's jewellery and jade industry. It is the first in China and even in the world, with independent intellectual property rights and reaching the international advanced level.
Many consumers who like pearls know that when choosing pearls, gloss is a standard that needs to be considered. The thickness of the pearl bead layer has an important influence on the pearl luster and is an important indicator for evaluating the quality of a nucleated pearl. For a long time, the insufficiency of the method for determining the thickness of pearl beads has become a difficult problem that has plagued pearl quality inspection agencies, and has also affected the integration of pearls in China with the international market. "At present, we use the traditional comparative method to measure the thickness of the bead layer." Wang Manjun said that this method requires the destructive experiment of pearls. After the pearl is opened and the bead thickness is visually observed, each is selected. Standard sample of pearls. The pearl to be tested can be concluded by comparing it with a standard sample. "In this detection method, human factors occupy a more important position, and the accuracy of detection needs to be improved."
Now, the Pearl Pearl Layer Thickness Measurement Method adopts an innovative method to introduce high-tech testing technologies used in the medical field to the jewelry field. The core technology of this method is the use of international advanced optical coherence tomography technology, which eliminates the need to measure open pearls and achieves a non-destructive, rapid, accurate, and safe bead thickness measurement with reliable results and good reproducibility. The implementation of this standard will help companies strengthen Pearl's product quality control.
From the text standard to the physical standard "large-grained diamond grading colorimetric stone" and "Chinese freshwater pearl standard sample" belong to the physical standard, is a national standard standard sample. Previously, diamonds and freshwater pearls had related national standards (literal standards), but over time, the lack of physical standard samples has become more and more prominent. The person in charge of the Jewelry and Jade Jewelry Management Center told reporters that there were only standard samples of small-grained diamonds in China. However, with the increase in the sales volume of large-grained diamonds in recent years, the detection accuracy of large-grained diamonds has become increasingly demanding. The “Large-grained diamond grading colorimetric stone†realized the integration with the international diamond industry, and the diamond standard sample can reach 70 to 80 minutes, which meets the market demand.
In 2002, the state promulgated the “Classification of Cultured Pearls†(GB/T18781-2002), which has written descriptions on the quality factors and grade evaluation of cultured pearls. Among them, there are requirements for freshwater cultured pearls in terms of color, size, shape, luster, finish, and bead thickness (nucleated pearls). “It can be said that in a certain period of time, “Classification of cultured pearls†has played a positive role in the regulation and technological advancement of the Chinese pearl market, but it is entirely a sensory evaluation standard in terms of color, luster, and finish, and cannot form a consistent quality classification. Shi Hongyue, deputy secretary-general of the Chinese Jewellery and Gemstone Jewelry Industry Association, said that the introduction of the physical sample of pearls will materialize the original theoretical and sensorial material and will improve the operability of the "cultured pearl grading." This set of physical standard samples selected the most common and most common white, red, and purple color systems as reference standards. The standard sample size is 9 mm, and the shape is circular, while the gloss and finish are mandatory national standards.
Promoting Standardization At present, China is the country where a small amount of jewellery in the world consumes over 10 billion U.S. dollars. It is the world’s most important jewelry consumer market. The data provided by the China Jewelry and Gemstone Jewelry Industry Association shows that China’s annual output of pearls is about 1600 tons, which accounts for more than 95% of the world’s total annual output of pearls. In recent years, the annual export volume has reached about 200 million US dollars. As the largest jade processing and consumption country in the world, China's annual jade consumption exceeds 20 billion yuan. The total annual consumption of diamond jewellery also reached more than 25 billion yuan.
“It can be said that the market of China's jewellery and jade industry is huge, but the imperfection of the standard system has affected the normative and rapid development of this industry.†For example, Shi Hongyue said that for a long time, China’s pearl industry has been in a situation where its output has grown and production value has stagnated. Because there is no authoritative and operable pearl quality grading standard, companies lack the motivation to improve product quality, resulting in a large number of low-quality products flooding the market, fisheyes, and the market's due elimination mechanism can not function properly. Some localities and enterprises will therefore increase the aquaculture area and the breeding density per unit area as the main approach to development, leading to rapid growth in the short period of production, to a certain extent, exceeding the market demand, causing a decline in prices. The long-term low price has made the vast majority of domestically produced pearls difficult to shake off the image of “cheap goods†in the international market, and the competitiveness of their products has lagged far behind that of other pearl-producing regions.
Shi Hongyue said that after the standards such as “Jade Gradeâ€, “Large-grain Diamond Graded Color Stoneâ€, and “China Freshwater Pearl Standard Sample†were issued, the product had an objective basis to compare and follow, and its quality and grade differences were The market recognized basis. The products of different quality will inevitably be reflected in the market price, thus encouraging enterprises to invest more resources in scientific research, design, and processing to improve product quality and grade, and to produce more high-quality products, thereby promoting China's jewelry jade industry as a whole upgrade and stronger.
Identifying the quality level of the gem will have a "magic weapon"
Near the New Year, various discount and promotion activities in the jewellery and jade market have dazzled many consumers. How to distinguish the grades of such products, to buy value for money jewelry has always been an important issue plaguing people. At present, it has entered the final approval stage of the 4 jade jewelry standards - "Jade classification", "the method of measuring the thickness of pearl beads," "a large particle diamond colorimetric stone" and "Chinese freshwater pearl standard sample", Will solve this problem to a great extent.
Among the four national standards that make up for the lack of measurement, the “Jade Grade†and “Method for measuring the thickness of pearl beads†are the most noticeable. As a big country of jade culture, China's national standard on the classification of jade has always been a blank. Wang Manjun, director of the Research Department of Jewelry and Jewelry Management Center, told reporters that grading jade is an important prerequisite for standardizing the jade market. However, due to the influence of such factors as the color, diversity of species, and the high price of samples, the development of jade grading standards is The four most difficult standards. Previously only Yunnan had introduced a relevant local standard.
Through several years of extensive market research and a large amount of scientific research, the “Jade Grade†development team started with test methods such as the Jade light source, unit transmittance, and chroma, combined with analysis methods such as colorimetry and sensory analysis to solve problems. Multiple professional technical problems. Wang Manjun said that the “Jade Grade†national standard is the authoritative technical standard for the first jade in China's jewellery and jade industry. It is the first in China and even in the world, with independent intellectual property rights and reaching the international advanced level.
Many consumers who like pearls know that when choosing pearls, gloss is a standard that needs to be considered. The thickness of the pearl bead layer has an important influence on the pearl luster and is an important indicator for evaluating the quality of a nucleated pearl. For a long time, the insufficiency of the method for determining the thickness of pearl beads has become a difficult problem that has plagued pearl quality inspection agencies, and has also affected the integration of pearls in China with the international market. "At present, we use the traditional comparative method to measure the thickness of the bead layer." Wang Manjun said that this method requires the destructive experiment of pearls. After the pearl is opened and the bead thickness is visually observed, each is selected. Standard sample of pearls. The pearl to be tested can be concluded by comparing it with a standard sample. "In this detection method, human factors occupy a more important position, and the accuracy of detection needs to be improved."
Now, the Pearl Pearl Layer Thickness Measurement Method adopts an innovative method to introduce high-tech testing technologies used in the medical field to the jewelry field. The core technology of this method is the use of international advanced optical coherence tomography technology, which eliminates the need to measure open pearls and achieves a non-destructive, rapid, accurate, and safe bead thickness measurement with reliable results and good reproducibility. The implementation of this standard will help companies strengthen Pearl's product quality control.
From the text standard to the physical standard "large-grained diamond grading colorimetric stone" and "Chinese freshwater pearl standard sample" belong to the physical standard, is a national standard standard sample. Previously, diamonds and freshwater pearls had related national standards (literal standards), but over time, the lack of physical standard samples has become more and more prominent. The person in charge of the Jewelry and Jade Jewelry Management Center told reporters that there were only standard samples of small-grained diamonds in China. However, with the increase in the sales volume of large-grained diamonds in recent years, the detection accuracy of large-grained diamonds has become increasingly demanding. The “Large-grained diamond grading colorimetric stone†realized the integration with the international diamond industry, and the diamond standard sample can reach 70 to 80 minutes, which meets the market demand.
In 2002, the state promulgated the “Classification of Cultured Pearls†(GB/T18781-2002), which has written descriptions on the quality factors and grade evaluation of cultured pearls. Among them, there are requirements for freshwater cultured pearls in terms of color, size, shape, luster, finish, and bead thickness (nucleated pearls). “It can be said that in a certain period of time, “Classification of cultured pearls†has played a positive role in the regulation and technological advancement of the Chinese pearl market, but it is entirely a sensory evaluation standard in terms of color, luster, and finish, and cannot form a consistent quality classification. Shi Hongyue, deputy secretary-general of the Chinese Jewellery and Gemstone Jewelry Industry Association, said that the introduction of the physical sample of pearls will materialize the original theoretical and sensorial material and will improve the operability of the "cultured pearl grading." This set of physical standard samples selected the most common and most common white, red, and purple color systems as reference standards. The standard sample size is 9 mm, and the shape is circular, while the gloss and finish are mandatory national standards.
Promoting Standardization At present, China is the country where a small amount of jewellery in the world consumes over 10 billion U.S. dollars. It is the world’s most important jewelry consumer market. The data provided by the China Jewelry and Gemstone Jewelry Industry Association shows that China’s annual output of pearls is about 1600 tons, which accounts for more than 95% of the world’s total annual output of pearls. In recent years, the annual export volume has reached about 200 million US dollars. As the largest jade processing and consumption country in the world, China's annual jade consumption exceeds 20 billion yuan. The total annual consumption of diamond jewellery also reached more than 25 billion yuan.
“It can be said that the market of China's jewellery and jade industry is huge, but the imperfection of the standard system has affected the normative and rapid development of this industry.†For example, Shi Hongyue said that for a long time, China’s pearl industry has been in a situation where its output has grown and production value has stagnated. Because there is no authoritative and operable pearl quality grading standard, companies lack the motivation to improve product quality, resulting in a large number of low-quality products flooding the market, fisheyes, and the market's due elimination mechanism can not function properly. Some localities and enterprises will therefore increase the aquaculture area and the breeding density per unit area as the main approach to development, leading to rapid growth in the short period of production, to a certain extent, exceeding the market demand, causing a decline in prices. The long-term low price has made the vast majority of domestically produced pearls difficult to shake off the image of “cheap goods†in the international market, and the competitiveness of their products has lagged far behind that of other pearl-producing regions.
Shi Hongyue said that after the standards such as “Jade Gradeâ€, “Large-grain Diamond Graded Color Stoneâ€, and “China Freshwater Pearl Standard Sample†were issued, the product had an objective basis to compare and follow, and its quality and grade differences were The market recognized basis. The products of different quality will inevitably be reflected in the market price, thus encouraging enterprises to invest more resources in scientific research, design, and processing to improve product quality and grade, and to produce more high-quality products, thereby promoting China's jewelry jade industry as a whole upgrade and stronger.
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