2 thoughts on “(High score !!!) About jewelry, gems, professional points”
Alfonso
one. The boutique management software free download and evaluation diamonds should be determined according to the four standards of "clarity, color, cutting, and weight". 1. Clearness: Diamonds are the product of nature, and there are more or less flaws inside. These flaws are small crystals, clouds, needle dots, and needle dots wrapped inside the diamond during the growth process. Small cracks and so on. The clarity classification is performed under 10 times the large mirror. According to the observation of the size of the defect, how much and the position of the place, etc., it is divided into five major levels. 2. Color grading: Color grading is obviously observed by the yellow (brown) color tone in the yellow series diamonds. The division of diamond color grades is completed by professionals in a specific environment. Diamond color is divided into 12 levels, and English letters represent different colors. 3. Cutting grading: Methods such as measurement and observation of mirror to classify the common ratio of diamond -cutting process quality. Modification is the evaluation of the symmetry and surface polishing quality of diamond cutting. As consumers, the quality of cutting should be based on whether the diamond is bright, whether the fire color is obvious, whether the shape is symmetrical, and whether the surface is damaged. 4. Quality (commonly known as weight): It is an important factor in evaluating the value of diamonds. The quality unit of the diamond is gram (g). It can also be represented by (CT). LG = 5ct. In fact, most of the weighing measures are directly weighed by carat Tianping. The carat value is retained to the two positions after the decimal point. This diamond quality grading regulations: Based on the clarity and color level of inlaid diamonds, the quality of inlaid diamonds is divided into excellent, good, good, better, and general five levels. The impact of cutting diamonds on quality is not considered. . Gem is a collective name for natural jewelry jade and artificial gemstones. Gemstones are the most beautiful and valuable categories of natural mineral minerals. It is bright in color, crystal texture, bright luster, hard and durable, and sparsely existence. It is a single crystal that can be used for jewelry and other purposes, such as diamonds, rubies, sapphires, emeralds, etc.; For example, the colorful Opal, there are also a few organic non -minerals, such as amber, pearl, coral, coal essence and ivory, as well as in a broad gemstone. jade is also the beauty of stone. It is lower than gems in texture and price. But it also has bright colors, hard and delicate texture, and has shiny luster and other characteristics after polishing. Jade is divided into a narrow sense and a broad sense, and the narrow sense only refers to lithutris (with Burmese jadeite as high -quality representatives) and nephrite (Hetian jade as high -quality representatives); the broad sense includes many minerals and rocks for arts and crafts. As for colorful stones, it refers to low -grade arts and crafts such as marble and other colors and textures such as the color and texture of marble. Some scholars advocate that color stones are included in the broad jade, or the color stone is temporarily used as a synonym for jade.
The gems are mostly single mineral crystals. Those with transparent are processed into aspect. Those who are transparent to opaque are often processed into plain jewelry. The latter has some starlight and cat eye effects. Diamonds, rubies, sapphires, emeralds, and golden green cat eyes are the five precious gems recognized by the world. They have value preservation and collection value. It jade is divided into color: white jade, jasper, green jade, ink jade, yellow jade, yellow jade, green jade, Jingbai jade, etc. From the region: Xinjiang jade, Henan jade, Xiuyan jade (also known as Johor Bahru), Australian jade, Dushan jade, southern jade, Canadian jade, etc. Among them, Xinjiang and Saitama are the famous specialty of my country. three. The types and content requirements of precious metals It gold, silver, platinum and precious metals n According to GB11887-2002 "Regulations and Name Methods of Pureth of Jewelry Precious Metals", the precious metal jewelry sold on the market can be divided into gold jewelry, silver jewelry, silver jewelry , Platinum head jewelry and puppet jewelry. Gold jewelry The can be divided into 18K gold, foot gold and thousands of gold according to the different gold content. 1K is equal to 100 % divide by 24, that is, 1K is about 4.1667 %. The theoretical purity of 24K is 100 %. ①18K gold jewelry's gold content is not less than 750 ‰, which can be identified as 18K or G18K, G750, AU750, gold 18K, and gold 750. ② the gold content of foot gold jewelry is not less than 990 ‰, which can be identified as foot gold or G990, AU990, and gold 990. ③ The gold content of thousands of gold jewelry is not less than 999 ‰, which can be identified as thousands of gold or G999, AU999, and gold 999. In addition, some 9K (especially abroad) can also be seen with gold jewelry such as 9K (gold content not less than 375 ‰), 14K (gold content not less than 585 ‰), and 22K (gold content not less than 916 ‰). silver jewelry The silver jewelry on the market is ① 925 silver. Some people are also called silver. The content of silver must not be less than 925 ‰. Other 75 ‰ can be copper or antioxidant elements. It can be identified as S925 or AG925, Silver 925. ② Foot silver, the content of silver must not be less than 990 ‰, which can be identified as S990 or AG990, and silver 990. Occasionally, 800 silver (silver content must not be less than 800 ‰). In recent years, in order to prevent the oxidation of silver jewelry, manufacturers have often been placed on the surface of 925 silver and foot silver. It is easy to mistake it as fake or imitation silver products if they are not careful during testing. Blatin jewelry platinum is also called platinum. In recent years, with the continuous improvement of consumption levels, platinum jewelry has become more and more popular with urban and rural men and women consumers. In the jewelry market, common platinum jewelry includes PT900, PT950 and PT990. ① PT900, the content of platinum must not be less than 900 ‰, which can be identified as PT900 or platinum 900. ②PT950, the content of platinum must not be less than 950 ‰, which can be identified as PT950 or platinum 950. ③PT990, the content of platinum must not be less than 990 ‰, which can be identified as PT990 or platinum 990, foot platinum (foot platinum). Occasionally, PT850 can also be seen (the content of platinum must not be less than 850 ‰), and the PT750 (the content of platinum must not be lower than 750 ‰). 饰 jewelry 钯 This precious metal was produced as jewelry alone this year. In the past, it was used as a dopant in platinum jewelry. It is another new member of the precious metal jewelry family. At present, the popular jewelry on the market mainly includes PD950 and PD990. ①PD950, the content of 钯 must not be less than 950 ‰, which can be identified as PD950 or 钯 950. ②PD990, the content of 钯 must not be less than 990 ‰, and can be identified as PD990 or 钯 990. The tadpole of the tadpoles of not less than 750 ‰ and 500 ‰ is mainly used for inlaid. It is not allowed to call the jewelry as "钯 Platinum Jewelry" and "Platinum Platinum Jewelry". In addition, the standards also require that the weight of precious metal jewelry should be retained with two decimal numbers. The weight deviation of the weight of the single piece of less than 100 grams must not be greater than 0.01 grams. four. For example, diamond : First of all, you cannot mix with other jewelry with other jewelry when collecting, so as not to wear each other, scrape, and use small cloth bags or rubber bags. Sweat acid contact, so it is best not to wear housework, swimming, and bathing for strenuous exercise. When cleaning, you can use hot water and mild detergent and soft bristles to clean it. It is mainly removed. Go to our Dongxiang franchise store for free cleaning, which is also good for the maintenance of jewelry. The maintenance common sense of precious metal jewelry : 1. Avoid wearing precious metal drinks for housework or heavy work. 2, avoid contact with mercury, lead and other metals. 3. Avoid contact with chemicals. 4, the human sweat will erode precious metal jewelry, it is best to wash it with water every day. 5, avoid wearing when bathing and sleeping, can not be pulled, 抻, and folded. five. Emerald's A, B, C
a goods have not been chemically treated with emerald The optimized jadeite also belongs to Class A. There is no need to prove it in the certificate. The main optimization methods are: bleach: refers to the bubbles of the emerald in the thin acid, "cleaning" the impurities of the emerald surface. Structural destruction is only on the surface, and it is mild, without filling substances (except waxing during polishing). The dwelling treatment: increased transparency, improved the appearance, and played the role of filling the gap on the surface. B of goods The strong acid bleaching is severely damaged by the emerald structure. A large number of polymers must be injected with a solid to be used. The certificate must be indicated on the certificate. c goods The original color of the jadeite is poor. After dyeing treatment, it produces bright colors.
It jade B and C products simple identification Mainer is placed under the fluorescent lamp to observe its color changes. The A and C goods do not change. C is dyed, so its color is distributed along the cracks, the distribution is uneven, and you can see the naked eye carefully.
It because of the limit of the number of words here, so much. I hope it will be useful to the original poster.
one.
The boutique management software free download and evaluation diamonds should be determined according to the four standards of "clarity, color, cutting, and weight".
1. Clearness: Diamonds are the product of nature, and there are more or less flaws inside. These flaws are small crystals, clouds, needle dots, and needle dots wrapped inside the diamond during the growth process. Small cracks and so on. The clarity classification is performed under 10 times the large mirror. According to the observation of the size of the defect, how much and the position of the place, etc., it is divided into five major levels.
2. Color grading: Color grading is obviously observed by the yellow (brown) color tone in the yellow series diamonds. The division of diamond color grades is completed by professionals in a specific environment. Diamond color is divided into 12 levels, and English letters represent different colors.
3. Cutting grading: Methods such as measurement and observation of mirror to classify the common ratio of diamond -cutting process quality. Modification is the evaluation of the symmetry and surface polishing quality of diamond cutting. As consumers, the quality of cutting should be based on whether the diamond is bright, whether the fire color is obvious, whether the shape is symmetrical, and whether the surface is damaged.
4. Quality (commonly known as weight): It is an important factor in evaluating the value of diamonds. The quality unit of the diamond is gram (g). It can also be represented by (CT). LG = 5ct. In fact, most of the weighing measures are directly weighed by carat Tianping. The carat value is retained to the two positions after the decimal point.
This diamond quality grading regulations: Based on the clarity and color level of inlaid diamonds, the quality of inlaid diamonds is divided into excellent, good, good, better, and general five levels. The impact of cutting diamonds on quality is not considered.
. Gem is a collective name for natural jewelry jade and artificial gemstones. Gemstones are the most beautiful and valuable categories of natural mineral minerals. It is bright in color, crystal texture, bright luster, hard and durable, and sparsely existence. It is a single crystal that can be used for jewelry and other purposes, such as diamonds, rubies, sapphires, emeralds, etc.; For example, the colorful Opal, there are also a few organic non -minerals, such as amber, pearl, coral, coal essence and ivory, as well as in a broad gemstone.
jade is also the beauty of stone. It is lower than gems in texture and price. But it also has bright colors, hard and delicate texture, and has shiny luster and other characteristics after polishing. Jade is divided into a narrow sense and a broad sense, and the narrow sense only refers to lithutris (with Burmese jadeite as high -quality representatives) and nephrite (Hetian jade as high -quality representatives); the broad sense includes many minerals and rocks for arts and crafts. As for colorful stones, it refers to low -grade arts and crafts such as marble and other colors and textures such as the color and texture of marble. Some scholars advocate that color stones are included in the broad jade, or the color stone is temporarily used as a synonym for jade.
The gems are mostly single mineral crystals. Those with transparent are processed into aspect. Those who are transparent to opaque are often processed into plain jewelry. The latter has some starlight and cat eye effects. Diamonds, rubies, sapphires, emeralds, and golden green cat eyes are the five precious gems recognized by the world. They have value preservation and collection value.
It jade is divided into color: white jade, jasper, green jade, ink jade, yellow jade, yellow jade, green jade, Jingbai jade, etc. From the region: Xinjiang jade, Henan jade, Xiuyan jade (also known as Johor Bahru), Australian jade, Dushan jade, southern jade, Canadian jade, etc. Among them, Xinjiang and Saitama are the famous specialty of my country.
three. The types and content requirements of precious metals
It gold, silver, platinum and precious metals n According to GB11887-2002 "Regulations and Name Methods of Pureth of Jewelry Precious Metals", the precious metal jewelry sold on the market can be divided into gold jewelry, silver jewelry, silver jewelry , Platinum head jewelry and puppet jewelry.
Gold jewelry
The can be divided into 18K gold, foot gold and thousands of gold according to the different gold content. 1K is equal to 100 % divide by 24, that is, 1K is about 4.1667 %. The theoretical purity of 24K is 100 %.
①18K gold jewelry's gold content is not less than 750 ‰, which can be identified as 18K or G18K, G750, AU750, gold 18K, and gold 750.
② the gold content of foot gold jewelry is not less than 990 ‰, which can be identified as foot gold or G990, AU990, and gold 990.
③ The gold content of thousands of gold jewelry is not less than 999 ‰, which can be identified as thousands of gold or G999, AU999, and gold 999. In addition, some 9K (especially abroad) can also be seen with gold jewelry such as 9K (gold content not less than 375 ‰), 14K (gold content not less than 585 ‰), and 22K (gold content not less than 916 ‰).
silver jewelry
The silver jewelry on the market is
① 925 silver. Some people are also called silver. The content of silver must not be less than 925 ‰. Other 75 ‰ can be copper or antioxidant elements. It can be identified as S925 or AG925, Silver 925.
② Foot silver, the content of silver must not be less than 990 ‰, which can be identified as S990 or AG990, and silver 990. Occasionally, 800 silver (silver content must not be less than 800 ‰). In recent years, in order to prevent the oxidation of silver jewelry, manufacturers have often been placed on the surface of 925 silver and foot silver. It is easy to mistake it as fake or imitation silver products if they are not careful during testing.
Blatin jewelry
platinum is also called platinum. In recent years, with the continuous improvement of consumption levels, platinum jewelry has become more and more popular with urban and rural men and women consumers. In the jewelry market, common platinum jewelry includes PT900, PT950 and PT990.
① PT900, the content of platinum must not be less than 900 ‰, which can be identified as PT900 or platinum 900.
②PT950, the content of platinum must not be less than 950 ‰, which can be identified as PT950 or platinum 950.
③PT990, the content of platinum must not be less than 990 ‰, which can be identified as PT990 or platinum 990, foot platinum (foot platinum). Occasionally, PT850 can also be seen (the content of platinum must not be less than 850 ‰), and the PT750 (the content of platinum
must not be lower than 750 ‰).
饰 jewelry
钯 This precious metal was produced as jewelry alone this year. In the past, it was used as a dopant in platinum jewelry. It is another new member of the precious metal jewelry family. At present, the popular jewelry on the market mainly includes PD950 and PD990.
①PD950, the content of 钯 must not be less than 950 ‰, which can be identified as PD950 or 钯 950.
②PD990, the content of 钯 must not be less than 990 ‰, and can be identified as PD990 or 钯 990. The tadpole of the tadpoles of not less than 750 ‰ and 500 ‰ is mainly used for inlaid. It is not allowed to call the jewelry as "钯 Platinum Jewelry" and "Platinum Platinum Jewelry". In addition, the standards also require that the weight of precious metal jewelry should be retained with two decimal numbers. The weight deviation of the weight of the single piece of less than 100 grams must not be greater than 0.01 grams.
four. For example, diamond
: First of all, you cannot mix with other jewelry with other jewelry when collecting, so as not to wear each other, scrape, and use small cloth bags or rubber bags. Sweat acid contact, so it is best not to wear housework, swimming, and bathing for strenuous exercise. When cleaning, you can use hot water and mild detergent and soft bristles to clean it. It is mainly removed. Go to our Dongxiang franchise store for free cleaning, which is also good for the maintenance of jewelry.
The maintenance common sense of precious metal jewelry
: 1. Avoid wearing precious metal drinks for housework or heavy work.
2, avoid contact with mercury, lead and other metals.
3. Avoid contact with chemicals.
4, the human sweat will erode precious metal jewelry, it is best to wash it with water every day.
5, avoid wearing when bathing and sleeping, can not be pulled, 抻, and folded.
five. Emerald's A, B, C
a goods have not been chemically treated with emerald
The optimized jadeite also belongs to Class A. There is no need to prove it in the certificate. The main optimization methods are:
bleach: refers to the bubbles of the emerald in the thin acid, "cleaning" the impurities of the emerald surface. Structural destruction is only on the surface, and it is mild, without filling substances (except waxing during polishing).
The dwelling treatment: increased transparency, improved the appearance, and played the role of filling the gap on the surface.
B of goods
The strong acid bleaching is severely damaged by the emerald structure. A large number of polymers must be injected with a solid to be used. The certificate must be indicated on the certificate.
c goods
The original color of the jadeite is poor. After dyeing treatment, it produces bright colors.
It jade B and C products simple identification
Mainer is placed under the fluorescent lamp to observe its color changes. The A and C goods do not change. C is dyed, so its color is distributed along the cracks, the distribution is uneven, and you can see the naked eye carefully.
It because of the limit of the number of words here, so much. I hope it will be useful to the original poster.
The answer is so professional, it is difficult to add!