How many grams are 24K gold? In the awareness of ordinary people, gold jewelry is equal to gold. In fact, in jewelry, many of them have gold, but the difference is quite large, such as pure gold, K gold, gold, gold plating, and so on. Different types of gold decorations are different, the purity is different and the color is different. The more valuable jewelry such as pure gold and K gold often occur in fraud. How to identify these gold jewelry?
It today we will understand the distinction between pure gold, K gold, bag gold, gold -plated jewelry and simplicity and easy learning method. pure gold pure gold jewelry is golden yellow, bright but soft but soft, with a hardness of 2.5, density 19.32g/cm3, and the melting point 1064 degrees Celsius has good ductility. One gram of pure gold can be pulled into 2500 meters into 2500 meters Long filament. The hammer is a 9.6 square meter gold foil, which shows the good ductility of gold. In the current national standards, the purity of gold can be called foot gold by more than 990, so how to identify sufficient gold? four steps of pure gold appraisal steel printing In international regulations, all precious metals must be put on steel prints somewhere in the jewelry during production. factory. According to the regulations, the gold content is more than 990.
The density of gold is more than twice as much as the density of 19.32g/cm3 than copper. When we weigh the gold with our hands, we will feel like a fall, while the copper does not feel this. In listening This will fall freely to the cement floor with a stuffy sound, while its imitation products are the crisp sound of the dangle, and the elasticity of pure gold jewelry is small, falling to the ground to the ground Generally, it will not bounce up, and because of its elasticity, the imitation products will bounce a few more times. The hardness The foot gold is soft, and the hardness is only 2.5. It is probably the same as that of the human fingernail. Therefore, the nails can generally draw traces on the foot gold. (Of course, although this is a method, the aesthetics may be affected after the traces of traces, so unless it is necessary, it is not recommended to use this method to test) Gold) is a alloy made of gold and other metals. K gold's "K" is the writing of the word "karat" of foreign language, and a complete statement: Karat Gold (that is, K gold), "AU" or "G" is a symbol used internationally to represent the purity (that is, the gold content) Essence The K gold jewelry of the yellow series is the alloy of gold, silver, and copper. According to the content of gold, it can be made into different K gold series jewelry. Essence This of the color of the yellow K gold series jewelry is related to the content of K gold and the proportion of silver and copper. The color of 18K gold jewelry is yellow than 14K and 10K gold jewelry, and the gold jewelry of the same K number, if the silver is more yellow than the copper, the copper is more yellow than the silver. k gold appraisal method: The easiest way to identify K gold jewelry is observation marks. Generally, European and American manufacturers are mostly on the back of K gold jewelry, and the digital marks of the gold content in K gold, such as 750, 585,, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, and 585, 375 and factory records, while China and Hong Kong are printed with K numbers, such as 22K, 18K, 14 K and Factory. In addition, the hardness of the K gold jewelry is above 3.5, the surface is tough and smooth, and the copper needles are not moving. The K gold jewelry of the white series The golden jewelry of the white K gold series, which is slightly blue and yellow, is marked with WG marks. A alloy with gold -based and silver, nickel, and zinc, is directly called K platinum in the business community. The 18 K K white gold is composed of 75 % gold and 25 % silver, nickel, and zinc group. The 14K K platinum is a alloy composed of 58.5 % gold and 41.5 % silver, nickel, and zinc. The second type is dominated by gold and 钯, plus alloys composed of copper, nickel, and zinc. Internationally, it uses the share of each metal in K platinum. The two varieties, namely 334K platinum and 266K platinum 334K platinum are K platinum composed of 3 parts of gold, 3 parts of gold, 4 copper, nickel, and zinc. Some people are also called 60 % K platinum. 226K Platinum is a K white gold composed of 2 parts of gold, 2 parts of gold, 6 copper, nickel, and zinc, also known as 40 % K platinum. Some manufacturers in Hong Kong believe that the price of 334 K platinum and 18 K gold, the price of 22K platinum and 14K, and also called it 18 K gold or 14k gold, and the mark of 18 K gold and 14 K gold. k platinum recognition method: It the method of identifying K platinum, in addition to seeing the imprint, the color of the K platinum is slightly yellowish white, the luster is not bright, and some are dark; Hardness is 4.3) hard; density is lower than platinum. The K gold jewelry of the red series The K gold jewelry of the red series is mainly gold and copper, adding a small amount of silver alloy, and the color is light red. It is a favorite K -gold jewelry variety for Europeans. Russians especially prefer red 14K gold jewelry. k red recognition method: If except for the color is red, the other characteristics are the same as the yellow series K gold jewelry. The inside of the jewelry is also marked with gold -containing marks and factory records. gold -plated jewelry The gold -plated jewelry is a jewelry with the main component of copper. Plating a layer of gold on the surface of the copper surface, but the gold plating layer is very thin, so such gold -plated jewelry There is still a difference in it carefully. Although the luster is bright and soft, it is not tolerated. If the gold -plated layer is worn for a period of time, it will be grinded, then the billet of the brass will be exposed, which will appear to be a dim red. Yellow, and the color of the plated place will be black. gold plating identification method (1) Carefully check if there is a place where the jewelry is binding or the depression of the corners; It is lighter with the hand, without falling feel, and there is a crispy "Dudu" sound on the ground, and it will be beating with good elasticity; (3) Generally there is no mark, and sometimes the GP logo is printed. Bacchus gold jewelry is actually easy to understand. Copper products or wrap a layer of pure gold foil on silver jewelry, and then processed into various jewelry. Is do n’t think it is very valuable to use the gold foil of gold. In fact, the gold foil of gold is very cheap, because one gram of pure gold can be hammered into a 9.6 square meter gold foil. Gold foil will not be easily opened. This wrapped gold jewelry The metal components of any part of the pure gold jewelry and K gold jewelry are the same, while the package gold jewelry is two or more metal adhesion or forging together. Wrap each other, the metal components are different in different parts, and their surfaces are gold, while internal copper and silver. gold jewelry Gold is an ancient gold -plated process. It is a mixed thickness of gold and mercury on the lower value of copper and silver. Baked, the mercury evaporated after heat, and the gold attached to the surface of the copper, and then flattened and polished. At present, this method is rarely used. Because the surface of the package gold jewelry has a thin layer of gold, it has certain deception, but it still retains the characteristics of copper products, such as small density. The golden appraisal method It gently with your hand, beating continuously after falling on the ground. Generally, there is no mark. Pay attention to identification when buying. The components of the metal of any part of the pure gold jewelry and K gold jewelry are the same, while the package gold jewelery is two or more metal enchantment or forging together, wrap each other, in different parts, and in different parts, The metal composition is different, and its surface is gold, while the inside is copper and silver.
How many grams are 24K gold?
In the awareness of ordinary people, gold jewelry is equal to gold. In fact, in jewelry, many of them have gold, but the difference is quite large, such as pure gold, K gold, gold, gold plating, and so on. Different types of gold decorations are different, the purity is different and the color is different. The more valuable jewelry such as pure gold and K gold often occur in fraud. How to identify these gold jewelry?
It today we will understand the distinction between pure gold, K gold, bag gold, gold -plated jewelry and simplicity and easy learning method.
pure gold
pure gold jewelry is golden yellow, bright but soft but soft, with a hardness of 2.5, density 19.32g/cm3, and the melting point 1064 degrees Celsius has good ductility. One gram of pure gold can be pulled into 2500 meters into 2500 meters Long filament. The hammer is a 9.6 square meter gold foil, which shows the good ductility of gold.
In the current national standards, the purity of gold can be called foot gold by more than 990, so how to identify sufficient gold?
four steps of pure gold appraisal
steel printing
In international regulations, all precious metals must be put on steel prints somewhere in the jewelry during production. factory. According to the regulations, the gold content is more than 990.
The density of gold is more than twice as much as the density of 19.32g/cm3 than copper. When we weigh the gold with our hands, we will feel like a fall, while the copper does not feel this.
In listening
This will fall freely to the cement floor with a stuffy sound, while its imitation products are the crisp sound of the dangle, and the elasticity of pure gold jewelry is small, falling to the ground to the ground Generally, it will not bounce up, and because of its elasticity, the imitation products will bounce a few more times.
The hardness
The foot gold is soft, and the hardness is only 2.5. It is probably the same as that of the human fingernail. Therefore, the nails can generally draw traces on the foot gold. (Of course, although this is a method, the aesthetics may be affected after the traces of traces, so unless it is necessary, it is not recommended to use this method to test)
Gold) is a alloy made of gold and other metals. K gold's "K" is the writing of the word "karat" of foreign language, and a complete statement: Karat Gold (that is, K gold), "AU" or "G" is a symbol used internationally to represent the purity (that is, the gold content) Essence
The K gold jewelry of the yellow series is the alloy of gold, silver, and copper. According to the content of gold, it can be made into different K gold series jewelry. Essence
This of the color of the yellow K gold series jewelry is related to the content of K gold and the proportion of silver and copper. The color of 18K gold jewelry is yellow than 14K and 10K gold jewelry, and the gold jewelry of the same K number, if the silver is more yellow than the copper, the copper is more yellow than the silver.
k gold appraisal method:
The easiest way to identify K gold jewelry is observation marks. Generally, European and American manufacturers are mostly on the back of K gold jewelry, and the digital marks of the gold content in K gold, such as 750, 585,, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, 585, and 585, 375 and factory records, while China and Hong Kong are printed with K numbers, such as 22K, 18K, 14 K and Factory. In addition, the hardness of the K gold jewelry is above 3.5, the surface is tough and smooth, and the copper needles are not moving.
The K gold jewelry of the white series
The golden jewelry of the white K gold series, which is slightly blue and yellow, is marked with WG marks. A alloy with gold -based and silver, nickel, and zinc, is directly called K platinum in the business community. The 18 K K white gold is composed of 75 % gold and 25 % silver, nickel, and zinc group. The 14K K platinum is a alloy composed of 58.5 % gold and 41.5 % silver, nickel, and zinc.
The second type is dominated by gold and 钯, plus alloys composed of copper, nickel, and zinc. Internationally, it uses the share of each metal in K platinum. The two varieties, namely 334K platinum and 266K platinum 334K platinum are K platinum composed of 3 parts of gold, 3 parts of gold, 4 copper, nickel, and zinc. Some people are also called 60 % K platinum. 226K Platinum is a K white gold composed of 2 parts of gold, 2 parts of gold, 6 copper, nickel, and zinc, also known as 40 % K platinum. Some manufacturers in Hong Kong believe that the price of 334 K platinum and 18 K gold, the price of 22K platinum and 14K, and also called it 18 K gold or 14k gold, and the mark of 18 K gold and 14 K gold.
k platinum recognition method:
It the method of identifying K platinum, in addition to seeing the imprint, the color of the K platinum is slightly yellowish white, the luster is not bright, and some are dark; Hardness is 4.3) hard; density is lower than platinum.
The K gold jewelry of the red series
The K gold jewelry of the red series is mainly gold and copper, adding a small amount of silver alloy, and the color is light red. It is a favorite K -gold jewelry variety for Europeans. Russians especially prefer red 14K gold jewelry.
k red recognition method:
If except for the color is red, the other characteristics are the same as the yellow series K gold jewelry. The inside of the jewelry is also marked with gold -containing marks and factory records.
gold -plated jewelry
The gold -plated jewelry is a jewelry with the main component of copper. Plating a layer of gold on the surface of the copper surface, but the gold plating layer is very thin, so such gold -plated jewelry There is still a difference in it carefully. Although the luster is bright and soft, it is not tolerated. If the gold -plated layer is worn for a period of time, it will be grinded, then the billet of the brass will be exposed, which will appear to be a dim red. Yellow, and the color of the plated place will be black.
gold plating identification method
(1) Carefully check if there is a place where the jewelry is binding or the depression of the corners; It is lighter with the hand, without falling feel, and there is a crispy "Dudu" sound on the ground, and it will be beating with good elasticity;
(3) Generally there is no mark, and sometimes the GP logo is printed.
Bacchus gold jewelry
is actually easy to understand. Copper products or wrap a layer of pure gold foil on silver jewelry, and then processed into various jewelry.
Is do n’t think it is very valuable to use the gold foil of gold. In fact, the gold foil of gold is very cheap, because one gram of pure gold can be hammered into a 9.6 square meter gold foil. Gold foil will not be easily opened.
This wrapped gold jewelry
The metal components of any part of the pure gold jewelry and K gold jewelry are the same, while the package gold jewelry is two or more metal adhesion or forging together. Wrap each other, the metal components are different in different parts, and their surfaces are gold, while internal copper and silver.
gold jewelry
Gold is an ancient gold -plated process. It is a mixed thickness of gold and mercury on the lower value of copper and silver. Baked, the mercury evaporated after heat, and the gold attached to the surface of the copper, and then flattened and polished. At present, this method is rarely used. Because the surface of the package gold jewelry has a thin layer of gold, it has certain deception, but it still retains the characteristics of copper products, such as small density.
The golden appraisal method
It gently with your hand, beating continuously after falling on the ground. Generally, there is no mark. Pay attention to identification when buying.
The components of the metal of any part of the pure gold jewelry and K gold jewelry are the same, while the package gold jewelery is two or more metal enchantment or forging together, wrap each other, in different parts, and in different parts, The metal composition is different, and its surface is gold, while the inside is copper and silver.