5 thoughts on “How to verify the authenticity of jewelry bought by Chinese gold:”
Joey
[How to judge the authenticity of gold jewelry] 1, see the mark, according to the national regulations, all jewelry will be imprinted. The mark should be clearly visible. s brand. There are also some small brands who only put on gold content and materials, and do not hit the brand. For example, the mark of the ‘foot gold’ margin is made as a gold manufacturing of 99 % of the purity. For example, when you play AU750 or G750, G18K is made of 18K gold, and 750 represents the gold content of 75 % of the purity. If there is no mark or a rough workmanship, it may be a fake.
2, look at the gloss, experienced the true and false from the gloss, the real golden luster is natural, the color is slightly red, and the charming and delicate luster will be made in strong light. Fake goods are mostly electroplated products. The color is not naturally different from real gold, and it is very hard and difficult to deform.
3, with the feel, the real gold density has a lot of feelings, the fake goods flutter, and the fake goods are deliberately done. The purpose is to increase the weight to impersonate it. It can also distinguish between true and false from hardness and gloss. There is also a method of wrapping the real gold on the outside, which needs to cut the ring to debate from the cut surface.
4, look at the texture, the pure gold texture is soft, the finger ring of the ring can be squeezed and deformed, and the teeth are bite. This is also related to the thickness and width of the ring.
[Jewelry cleaning method]
(1) Handmade cleaning It use a container to add warm water and drip a little cleaning agent. Put the gem jewelry to be washed in it, scrub or wash the gem with soft cloth or soft natural fibers. After cleaning, remove it on the soft clean cloth or dry it in the air, and it is not allowed to use polishing or heat. (2) Ultrasonic cleaning This can be cleaned with this method. However, although there are not many gem jewelry and cracks containing more cracks, a cracks that run through most of gemstones are washed with this method, otherwise the gem may be broken. Here, special attention should be paid to the use of ultrasonic cleaning as much as possible.
Differential gold requires some experience. Simply introduce some identification methods. But it is best to go to the gold shop!
(1) See color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 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.
(3) Look at the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth prints. High -colored gold jewelry is low and soft, with copper with copper, contains copper containing copper, contains copper containing copper The harder, the harder, the bending method can also test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
(4) Listening to the sound: Real gold with a color of more than 99 % throwing it on the hard ground, 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.
(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with fire (do not melt the jewelry), and observe the color change after cooling. Dark or different degrees of darkness is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; The word "18K" is marked, and those who have a lower color are lower than LOK. At present, illegal elements are commonly used to manufacture fake cards and imitation stamps in the society. They use rare 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 of the real.
The accurate identification of gold jewelry in accurate commonly used common methods.
(1) Testing gold stone method: Select the black test gold stone with delicate texture, use the standard tasting films with different gold content (on the gold medal) on the test gold stone, and then put the gold jewelry sample you want to identify in The scratches on the same goldstone, drip the concentrated nitric acid to remove the impurities, and find the traces left on the test gold stones compared with the traces of the tested slices. The accurate gold content of gold jewelry samples to be determined.
(2) Chemical method: also known as reagent test method. Gold is insoluble in separate nitric acid, sulfuric acid, and hydrochloric acid, and silver and copper ingredients can be dissolved with nitric acid. Take gold decorative sample. Putting nitric acid on a certain part, if gold will not change color, if it is silver products, it will generate silver oxide and turn black; For gold jewelry with a gold content of more than 95 %, test with nitric acid, the surface changes very small.
Pay content for time limit to check for freenAnswer Hello, you can go to the local gold shop for inspectionnType weight, really golden feel, fake gold feel lighter;nTesting hardness, real gold can use nails to draw traces, and fake gold texture is hard.nThe authenticity of the gold can see the color. The color of the gold has always been said in the industry that "the seven -green eight yellow nine five red" is always said. If the color and color of the gold are not corresponding, it means that gold is likely to be fake.nMore 2nBleak
Things are not false. At least, CICC has not found fakes at present, because Chinese gold itself does not have the ability to produce jewelry. They all rely on processing factories to help them process them. After verification, they will post their brand sales. Although Chinese gold is still a bit confusing in management, it has gradually regulated.
It is true. Thousands of gold is the purest gold. The word "Zhong Jin" is the general name of the Chinese gold brand. The tag of platinum should be PT950, and the previous letters are the manufacturer's code.
[How to judge the authenticity of gold jewelry]
1, see the mark, according to the national regulations, all jewelry will be imprinted. The mark should be clearly visible. s brand. There are also some small brands who only put on gold content and materials, and do not hit the brand. For example, the mark of the ‘foot gold’ margin is made as a gold manufacturing of 99 % of the purity. For example, when you play AU750 or G750, G18K is made of 18K gold, and 750 represents the gold content of 75 % of the purity. If there is no mark or a rough workmanship, it may be a fake.
2, look at the gloss, experienced the true and false from the gloss, the real golden luster is natural, the color is slightly red, and the charming and delicate luster will be made in strong light. Fake goods are mostly electroplated products. The color is not naturally different from real gold, and it is very hard and difficult to deform.
3, with the feel, the real gold density has a lot of feelings, the fake goods flutter, and the fake goods are deliberately done. The purpose is to increase the weight to impersonate it. It can also distinguish between true and false from hardness and gloss. There is also a method of wrapping the real gold on the outside, which needs to cut the ring to debate from the cut surface.
4, look at the texture, the pure gold texture is soft, the finger ring of the ring can be squeezed and deformed, and the teeth are bite. This is also related to the thickness and width of the ring.
[Jewelry cleaning method]
(1) Handmade cleaning
It use a container to add warm water and drip a little cleaning agent. Put the gem jewelry to be washed in it, scrub or wash the gem with soft cloth or soft natural fibers. After cleaning, remove it on the soft clean cloth or dry it in the air, and it is not allowed to use polishing or heat.
(2) Ultrasonic cleaning
This can be cleaned with this method. However, although there are not many gem jewelry and cracks containing more cracks, a cracks that run through most of gemstones are washed with this method, otherwise the gem may be broken. Here, special attention should be paid to the use of ultrasonic cleaning as much as possible.
Differential gold requires some experience. Simply introduce some identification methods. But it is best to go to the gold shop!
(1) See color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 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.
(3) Look at the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth prints. High -colored gold jewelry is low and soft, with copper with copper, contains copper containing copper, contains copper containing copper The harder, the harder, the bending method can also test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
(4) Listening to the sound: Real gold with a color of more than 99 % throwing it on the hard ground, 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.
(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with fire (do not melt the jewelry), and observe the color change after cooling. Dark or different degrees of darkness is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; The word "18K" is marked, and those who have a lower color are lower than LOK. At present, illegal elements are commonly used to manufacture fake cards and imitation stamps in the society. They use rare 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 of the real.
The accurate identification of gold jewelry in accurate commonly used common methods.
(1) Testing gold stone method: Select the black test gold stone with delicate texture, use the standard tasting films with different gold content (on the gold medal) on the test gold stone, and then put the gold jewelry sample you want to identify in The scratches on the same goldstone, drip the concentrated nitric acid to remove the impurities, and find the traces left on the test gold stones compared with the traces of the tested slices. The accurate gold content of gold jewelry samples to be determined.
(2) Chemical method: also known as reagent test method. Gold is insoluble in separate nitric acid, sulfuric acid, and hydrochloric acid, and silver and copper ingredients can be dissolved with nitric acid. Take gold decorative sample. Putting nitric acid on a certain part, if gold will not change color, if it is silver products, it will generate silver oxide and turn black; For gold jewelry with a gold content of more than 95 %, test with nitric acid, the surface changes very small.
Pay content for time limit to check for freenAnswer Hello, you can go to the local gold shop for inspectionnType weight, really golden feel, fake gold feel lighter;nTesting hardness, real gold can use nails to draw traces, and fake gold texture is hard.nThe authenticity of the gold can see the color. The color of the gold has always been said in the industry that "the seven -green eight yellow nine five red" is always said. If the color and color of the gold are not corresponding, it means that gold is likely to be fake.nMore 2nBleak
Things are not false. At least, CICC has not found fakes at present, because Chinese gold itself does not have the ability to produce jewelry. They all rely on processing factories to help them process them. After verification, they will post their brand sales. Although Chinese gold is still a bit confusing in management, it has gradually regulated.
The platinum should be LCPT950
It is true. Thousands of gold is the purest gold. The word "Zhong Jin" is the general name of the Chinese gold brand. The tag of platinum should be PT950, and the previous letters are the manufacturer's code.