5 thoughts on “What does it mean for gold's 18K and 24K? How to distinguish it?”
Sherman
K refers to the gold content of gold. The national standard GB11887-89 stipulates that the gold content per k is 4.166%, 18K = 18*4.166%= 74.998%(750 ‰), and 24K = 24*4.166%= 99.984%(999 ‰). The differences: 1, gold content 18k: 18K gold is a alloy with a gold content of at least 75%, that is, the alloy with a gold content of 18/24. 24K: China regulations: Gold with a content of more than 99.6%(including 99.6%) can be called 24K gold. Also called thousands of gold. 2, ingredients 18k: 18K gold is a alloy with a gold content of at least 75%, and the remaining 25%are other precious metals, including platinum, nickel, silver, and gold. Among them, white K gold is actually alloy of gold, nickel, zinc, copper and other elements. 24K: The theoretically 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold, so my country stipulates that the content of more than 99.6%(including 99.6%) can be called 24K. gold. 3, color 18k: Because it contains 25%of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red, which are called: white 18K gold, 18K gold, 18K, 18K Rose gold. 24K: The shiny dark yellow, thick yellow, the higher the purity of the gold jewelry, the deeper the color. 4, weight
24K: 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. Gold jewelry should have a feeling of sinking in his hands. 18k: 18K gold pendant, the gold jewelry feels light. 5, hardness 24K: pure gold is soft and low. It can be used to draw light marks with nails, and teeth can leave the dental mark. 18k: 18K gold jewelry not only has the precious value of gold, but also has the advantages of strong proportion of its composition, strong ductility, high hardness, and variety of color. Performance. Reference materials Source: Baidu Encyclopedia-18K gold Reference materials Source: Baidu Encyclopedia-24K
24K refers to pure gold, and 18K is the amount of gold 18/24 = 75.0%. The easiest and most reliable distinction is to view the mark. The national standards stipulate that precious metal jewelry should have the marks of production, manufacturers, materials and content, and unqualified products for unqualified products. If quality problems, quality inspection agencies can be given inspection and judgment according to the mark. Consumers should purchase the brand they need and gold jewelry of different gold content according to the mark. k gold refers to the alloy mixed with gold and other metals. Because its English is Karatgold, it is referred to as K gold for short. karat is the amount of K gold, which is divided into 24 copies. According to the gold content in jewelry, it is divided into different K gold, so 24K refers to pure gold, 18K gold content is 18/24 = 75.0%, and because the gold content of 18K gold is 75.0%, it is also called 750. 24K gold fingers with a purity of 99%of gold. At present, the market occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100%. It is incorrect to win 24K gold in sales and does not meet national standards. 18K gold refers to the gold content of at least 75%of the gold content. k gold calculation method is to divide pure gold into 24 copies, 18K gold, the gold content of 18/24, and the remaining 25%are other precious metals, including platinum, nickel, silver, and gold. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing.
18k gold jewelry not only has the precious value of gold, but also has the advantages of strong proportion of components, strong ductility, high hardness, and variety of color. Creative performance. Because it contains 25%of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red, which are called: white 18K gold, 18K gold, and 18K rose gold. Pucting information: 18K refers to the purity of the gold in jewelry in jewelry 18K. 18K is not a weight, but a proportion. Theoretically, 100%gold content is 24K. In fact, it is impossible to have 100%purity gold. Our country stipulates that the gold with a purity above 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750. 18K's precious metals are gold, of which 25%are other metals. It pure gold is soft, not suitable for jewelry shape, not suitable for inlaid gemstones, adding 18K gold with other metals, not only has the precious value of gold, but also because of its perfect proportion of its ingredients, strong ductility, high hardness, high hardness The advantages of changing colors are used in jewelry design. They are both beautiful and strong in structure. They can fully play complex and exquisite creative performance and achieve various shapes. Therefore, 18K gold is widely used in contemporary jewelry and is very popular. 24k is a gold product. 24K gold is considered to be pure gold, but the actual gold content is 99.99%(actually 99.998%). Some businesses even launch the concept of "10,000 gold" for hype (the highest gold content can reach 999.9 ‰, but the 10,000 -foot gold The statement did not be recognized by the country). Theoretically 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold, so China stipulates that the content of more than 99.96%(including 99.96%) Essence Also called thousands of gold. The understanding of 24K gold in society is thousands of gold. The purity of gold and its products is called "color". There are two types of gold products on the market: 1, percentage, such as G999; G22K and G18K. The regulations on gold product marks and logo cards in my country generally require production enterprise codes, materials names, content marks, etc., and unqualified products are unqualified products. The same is true internationally. But for some particularly small products, they are also allowed not to mark. National Standard GB11887-89 stipulates that each opening (abbreviation of English Carat and German Karat, writing K) has a gold content of 4.166%. 2015 Spring Festival, the National Standardization Management Committee announced GB11887-2012 "Regulations and Name Methods of Jewelry Purither and Name", which will be implemented on May 4, 2016. It can only be marked as "foot gold", and it cannot be called "Thousands of Gold", and there is no "24K gold" and "10,000 -foot gold". Reference materials: Baidu Encyclopedia-18K Reference materials: Baidu Encyclopedia-24K
1, 24K refers to pure gold, 18K is 18/24 = 75.0%in gold. The explanation: K gold refers to alloys mixed with gold and other metals. Because its English is Karatgold, it is referred to as K gold for short. Karat is a measured unit of K gold, which divides pure gold into 24 copies. According to the gold content in jewelry, it is divided into different K gold, so 24K refers to pure gold, 18K gold content is 18/24 = 75.0%, and because the gold content of 18K gold is 75.0%, it is also called 750. 2, distinction: The simplest and most reliable is viewing the mark. National standards stipulate that precious metal jewelry should be produced, manufacturers, materials and content marks, and unscayed products are unqualified products. If a quality problem, quality inspection agencies can be given inspection and judgment according to the mark, consumers should purchase the brand they need and gold jewelry of different gold content according to the mark. The expansion data 1 and 18K refers to the purity of the gold in jewelry in jewelry 18K. 18K is not a weight, but a proportion. Theoretically, 100%gold content is 24K. In fact, it is impossible to have 100%purity gold. Our country stipulates that the gold with a purity above 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750. 18K is also defined as a Go entry level! For the new Go level, it is called 18K! It is also the lowest level of Go! 2, 24K are a gold product. 24K gold is considered to be pure gold, but the actual gold content is 99.99%(actually 99.998%). Some businesses even launch the concept of "10,000 gold" for hype (the highest gold content can reach 999.9 ‰, but the 10,000 -foot gold The statement did not be recognized by the country). Reference information Baidu Encyclopedia-18K Baidu Encyclopedia-24K
18K gold refers to 75%gold in gold. 24K gold is 99%of gold. At present, the market occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100%, and gold has no barefoot. Therefore, 24K is not existing. 24K gold is incorrect and does not meet national standards. 18k gold, refers to 75%gold plus 25%silver and copper. As the proportion of silver and copper produces yellow, white or red, and 18K platinum, because the proportion of silver is large, it presents the presentation, so it presents it. White, commonly known as 18K platinum. 24K and 18K gold refers to the gold content. For example, the white 18K gold can also be represented by 18K white, 750g, 750 gold, and AU750. The purity of platinum jewelry is not expressed as "K". The white K gold and K platinum jewelry sold on the market are not platinum jewelry. When buying platinum jewelry, you should ask the operator to issue an invoice. Write whether it is platinum or white 18K gold in the invoice. It is best to indicate the weight of the jewelry, so that it is easier to claim when the fraud occurs. The expansion information:
The people add a small amount of silver, copper, zinc and other metals to gold to increase the strength and toughness of gold. The gold ornaments made, also known as K gold. k gold can be prepared into various colors as needed. There are various colors of K gold jewelry popular in the world. Everyone is common in yellow and white. Mixing 25%of 入 or nickel in gold will become white, which is the main ingredient of it is gold. This is called white K gold. For science and technology, it is not possible to refine pure gold materials with a purity of 100%. Therefore, the golden position standard K in the gold content in the gold product generally refers to the pure gold as 24K gold, but it only contains 100%in theory, but it does not exist. Therefore, in the national standard, the gold content of the merchants that the gold jewelry must not use the irregular standards of "24K gold". Since the pure gold is 24K, that is, the theoretical gold content is 100%, then 1K means that gold products contain pure gold 1/24, about 4.16%. 18K gold represents the gold content of 18/24, which is 75%of pure gold, and the rest are other materials such as silver or copper. The saying goes, "Gold has no redness, no one is perfect", generally gold jewelry contains other metals. Regarding the color content of gold products, the national standards have clear regulations, that is, each gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of the gold jewelry is all used in the national statutory unit. Its gold content should use "K gold" (excluding 24K gold), "foot gold" (not less than 99%), "thousands of gold" (not less than 99.9%). Pure gold "" 24K gold "and other" 24K gold "and other irregular standard methods. Reference materials: Baidu Encyclopedia: K gold
K gold (or opening gold) is a alloy made of gold and other metals. "K" is a symbol that is used internationally to represent the purity of gold (that is, the gold content). So what is the gold content of 1K? Internationally, 24K gold is used as 100 % gold content, so the gold content of 1K is 100 /24 = 4.1666 %. The most common "18K gold" in my country's market, its gold content is 18 × 4.1666 = 75 %, and the imprint on the accessories should be "18K" or "750".
What is white K gold?
The melting of gold and other metals, due to the different types of other metals and the proportion of income, can get different colors of K gold. For example, after the melting of gold and copper, silver, nickel, 钯, etc., it presents a green alloy after different proportion, called "green K gold"; after the gold and copper are fused according to a certain proportion, the rose red alloys can be presented, called "red red red K gold "; after the gold, silver, zinc, and nickel are fused according to different proportions, it can get silver -white K gold, which is called" white K gold ". In addition, there are blue K gold, black K gold, etc. Because K gold is a melting alloy, its surface is consistent with the internal color, and it will not change color after wearing it for a period of time.
What is Platinum?
Platinum, the scientific name is "platinum", and the chemical element symbol is "PT" (abbreviation of Platinum). Because the true color of platinum is silver -white, it is commonly known as platinum.
The white gold is also divided into pure platinum and K platinum. Platinum jewelry generally requires the word "PT" and indicates the number of purity. At present, the most common in the domestic market is "PT900". This imprint means that this is a platinum (platinum) product with a platinum content of 90 %. Others can also see the imprints such as "PT990, PT950, PT850" and other imprints. Platinum jewelry. As for K platinum, it is important to emphasize that it is referred to as the proportion of gold, such as 18K platinum, and its mark is "18kpt", indicating that the amount of gold contains 75 % (the same as the gold 18K gold) , Platinum (PT) is 20 %, and 5 % of silver. There are rare 18K platinum in our market, but it cannot be said that "18K Platinum does not exist at all." Any accessories that do not have the mark of "PT" are accessories that do not contain platinum (platinum). Therefore, when buying platinum jewelry, you must carefully observe whether there is a "PT" mark. (Shenzhen Evening News /Gifts-Crafts /Gifts04)
K refers to the gold content of gold. The national standard GB11887-89 stipulates that the gold content per k is 4.166%, 18K = 18*4.166%= 74.998%(750 ‰), and 24K = 24*4.166%= 99.984%(999 ‰).
The differences:
1, gold content
18k: 18K gold is a alloy with a gold content of at least 75%, that is, the alloy with a gold content of 18/24.
24K: China regulations: Gold with a content of more than 99.6%(including 99.6%) can be called 24K gold. Also called thousands of gold.
2, ingredients
18k: 18K gold is a alloy with a gold content of at least 75%, and the remaining 25%are other precious metals, including platinum, nickel, silver, and gold. Among them, white K gold is actually alloy of gold, nickel, zinc, copper and other elements.
24K: The theoretically 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold, so my country stipulates that the content of more than 99.6%(including 99.6%) can be called 24K. gold.
3, color
18k: Because it contains 25%of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red, which are called: white 18K gold, 18K gold, 18K, 18K Rose gold.
24K: The shiny dark yellow, thick yellow, the higher the purity of the gold jewelry, the deeper the color.
4, weight
24K: 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. Gold jewelry should have a feeling of sinking in his hands.
18k: 18K gold pendant, the gold jewelry feels light.
5, hardness
24K: pure gold is soft and low. It can be used to draw light marks with nails, and teeth can leave the dental mark.
18k: 18K gold jewelry not only has the precious value of gold, but also has the advantages of strong proportion of its composition, strong ductility, high hardness, and variety of color. Performance.
Reference materials Source: Baidu Encyclopedia-18K gold
Reference materials Source: Baidu Encyclopedia-24K
24K refers to pure gold, and 18K is the amount of gold 18/24 = 75.0%.
The easiest and most reliable distinction is to view the mark. The national standards stipulate that precious metal jewelry should have the marks of production, manufacturers, materials and content, and unqualified products for unqualified products.
If quality problems, quality inspection agencies can be given inspection and judgment according to the mark. Consumers should purchase the brand they need and gold jewelry of different gold content according to the mark.
k gold refers to the alloy mixed with gold and other metals. Because its English is Karatgold, it is referred to as K gold for short.
karat is the amount of K gold, which is divided into 24 copies. According to the gold content in jewelry, it is divided into different K gold, so 24K refers to pure gold, 18K gold content is 18/24 = 75.0%, and because the gold content of 18K gold is 75.0%, it is also called 750.
24K gold fingers with a purity of 99%of gold. At present, the market occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100%. It is incorrect to win 24K gold in sales and does not meet national standards. 18K gold refers to the gold content of at least 75%of the gold content.
k gold calculation method is to divide pure gold into 24 copies, 18K gold, the gold content of 18/24, and the remaining 25%are other precious metals, including platinum, nickel, silver, and gold. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing.
18k gold jewelry not only has the precious value of gold, but also has the advantages of strong proportion of components, strong ductility, high hardness, and variety of color. Creative performance. Because it contains 25%of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red, which are called: white 18K gold, 18K gold, and 18K rose gold.
Pucting information: 18K refers to the purity of the gold in jewelry in jewelry 18K. 18K is not a weight, but a proportion.
Theoretically, 100%gold content is 24K. In fact, it is impossible to have 100%purity gold. Our country stipulates that the gold with a purity above 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750.
18K's precious metals are gold, of which 25%are other metals.
It pure gold is soft, not suitable for jewelry shape, not suitable for inlaid gemstones, adding 18K gold with other metals, not only has the precious value of gold, but also because of its perfect proportion of its ingredients, strong ductility, high hardness, high hardness The advantages of changing colors are used in jewelry design. They are both beautiful and strong in structure. They can fully play complex and exquisite creative performance and achieve various shapes. Therefore, 18K gold is widely used in contemporary jewelry and is very popular.
24k is a gold product. 24K gold is considered to be pure gold, but the actual gold content is 99.99%(actually 99.998%). Some businesses even launch the concept of "10,000 gold" for hype (the highest gold content can reach 999.9 ‰, but the 10,000 -foot gold The statement did not be recognized by the country).
Theoretically 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold, so China stipulates that the content of more than 99.96%(including 99.96%) Essence Also called thousands of gold. The understanding of 24K gold in society is thousands of gold.
The purity of gold and its products is called "color". There are two types of gold products on the market:
1, percentage, such as G999; G22K and G18K.
The regulations on gold product marks and logo cards in my country generally require production enterprise codes, materials names, content marks, etc., and unqualified products are unqualified products. The same is true internationally. But for some particularly small products, they are also allowed not to mark. National Standard GB11887-89 stipulates that each opening (abbreviation of English Carat and German Karat, writing K) has a gold content of 4.166%.
2015 Spring Festival, the National Standardization Management Committee announced GB11887-2012 "Regulations and Name Methods of Jewelry Purither and Name", which will be implemented on May 4, 2016. It can only be marked as "foot gold", and it cannot be called "Thousands of Gold", and there is no "24K gold" and "10,000 -foot gold".
Reference materials: Baidu Encyclopedia-18K
Reference materials: Baidu Encyclopedia-24K
1, 24K refers to pure gold, 18K is 18/24 = 75.0%in gold.
The explanation: K gold refers to alloys mixed with gold and other metals. Because its English is Karatgold, it is referred to as K gold for short. Karat is a measured unit of K gold, which divides pure gold into 24 copies. According to the gold content in jewelry, it is divided into different K gold, so 24K refers to pure gold, 18K gold content is 18/24 = 75.0%, and because the gold content of 18K gold is 75.0%, it is also called 750.
2, distinction: The simplest and most reliable is viewing the mark. National standards stipulate that precious metal jewelry should be produced, manufacturers, materials and content marks, and unscayed products are unqualified products. If a quality problem, quality inspection agencies can be given inspection and judgment according to the mark, consumers should purchase the brand they need and gold jewelry of different gold content according to the mark.
The expansion data 1 and 18K refers to the purity of the gold in jewelry in jewelry 18K. 18K is not a weight, but a proportion. Theoretically, 100%gold content is 24K. In fact, it is impossible to have 100%purity gold. Our country stipulates that the gold with a purity above 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750. 18K is also defined as a Go entry level! For the new Go level, it is called 18K! It is also the lowest level of Go!
2, 24K are a gold product. 24K gold is considered to be pure gold, but the actual gold content is 99.99%(actually 99.998%). Some businesses even launch the concept of "10,000 gold" for hype (the highest gold content can reach 999.9 ‰, but the 10,000 -foot gold The statement did not be recognized by the country).
Reference information Baidu Encyclopedia-18K Baidu Encyclopedia-24K
18K gold refers to 75%gold in gold. 24K gold is 99%of gold. At present, the market occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100%, and gold has no barefoot. Therefore, 24K is not existing. 24K gold is incorrect and does not meet national standards.
18k gold, refers to 75%gold plus 25%silver and copper. As the proportion of silver and copper produces yellow, white or red, and 18K platinum, because the proportion of silver is large, it presents the presentation, so it presents it. White, commonly known as 18K platinum.
24K and 18K gold refers to the gold content. For example, the white 18K gold can also be represented by 18K white, 750g, 750 gold, and AU750. The purity of platinum jewelry is not expressed as "K". The white K gold and K platinum jewelry sold on the market are not platinum jewelry. When buying platinum jewelry, you should ask the operator to issue an invoice. Write whether it is platinum or white 18K gold in the invoice. It is best to indicate the weight of the jewelry, so that it is easier to claim when the fraud occurs.
The expansion information:
The people add a small amount of silver, copper, zinc and other metals to gold to increase the strength and toughness of gold. The gold ornaments made, also known as K gold.
k gold can be prepared into various colors as needed. There are various colors of K gold jewelry popular in the world. Everyone is common in yellow and white. Mixing 25%of 入 or nickel in gold will become white, which is the main ingredient of it is gold. This is called white K gold.
For science and technology, it is not possible to refine pure gold materials with a purity of 100%. Therefore, the golden position standard K in the gold content in the gold product generally refers to the pure gold as 24K gold, but it only contains 100%in theory, but it does not exist. Therefore, in the national standard, the gold content of the merchants that the gold jewelry must not use the irregular standards of "24K gold". Since the pure gold is 24K, that is, the theoretical gold content is 100%, then 1K means that gold products contain pure gold 1/24, about 4.16%. 18K gold represents the gold content of 18/24, which is 75%of pure gold, and the rest are other materials such as silver or copper.
The saying goes, "Gold has no redness, no one is perfect", generally gold jewelry contains other metals. Regarding the color content of gold products, the national standards have clear regulations, that is, each gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of the gold jewelry is all used in the national statutory unit. Its gold content should use "K gold" (excluding 24K gold), "foot gold" (not less than 99%), "thousands of gold" (not less than 99.9%). Pure gold "" 24K gold "and other" 24K gold "and other irregular standard methods.
Reference materials: Baidu Encyclopedia: K gold
What is K gold?
K gold (or opening gold) is a alloy made of gold and other metals. "K" is a symbol that is used internationally to represent the purity of gold (that is, the gold content). So what is the gold content of 1K? Internationally, 24K gold is used as 100 % gold content, so the gold content of 1K is 100 /24 = 4.1666 %. The most common "18K gold" in my country's market, its gold content is 18 × 4.1666 = 75 %, and the imprint on the accessories should be "18K" or "750".
What is white K gold?
The melting of gold and other metals, due to the different types of other metals and the proportion of income, can get different colors of K gold. For example, after the melting of gold and copper, silver, nickel, 钯, etc., it presents a green alloy after different proportion, called "green K gold"; after the gold and copper are fused according to a certain proportion, the rose red alloys can be presented, called "red red red K gold "; after the gold, silver, zinc, and nickel are fused according to different proportions, it can get silver -white K gold, which is called" white K gold ". In addition, there are blue K gold, black K gold, etc. Because K gold is a melting alloy, its surface is consistent with the internal color, and it will not change color after wearing it for a period of time.
What is Platinum?
Platinum, the scientific name is "platinum", and the chemical element symbol is "PT" (abbreviation of Platinum). Because the true color of platinum is silver -white, it is commonly known as platinum.
The white gold is also divided into pure platinum and K platinum. Platinum jewelry generally requires the word "PT" and indicates the number of purity. At present, the most common in the domestic market is "PT900". This imprint means that this is a platinum (platinum) product with a platinum content of 90 %. Others can also see the imprints such as "PT990, PT950, PT850" and other imprints. Platinum jewelry. As for K platinum, it is important to emphasize that it is referred to as the proportion of gold, such as 18K platinum, and its mark is "18kpt", indicating that the amount of gold contains 75 % (the same as the gold 18K gold) , Platinum (PT) is 20 %, and 5 % of silver. There are rare 18K platinum in our market, but it cannot be said that "18K Platinum does not exist at all." Any accessories that do not have the mark of "PT" are accessories that do not contain platinum (platinum). Therefore, when buying platinum jewelry, you must carefully observe whether there is a "PT" mark. (Shenzhen Evening News /Gifts-Crafts /Gifts04)