4 thoughts on “How to identify the gold content of gold jewelry”
Diane
Gold jewelry can be divided into 24K (gold content above 99%), 22K (gold content 91.7%), 18K (gold content 75%), 14K (gold content 58.33%), 12K (gold content 50%), etc. When buying gold jewelry, you can identify it from the following aspects color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation see phonology: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter sound. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce try to be soft and hard: the higher the fineness of gold jewelry, the softer and less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needles. It will not break lines when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones.
First of all, from the surface color, if the gold jewelry reaches 70% of the gold content, the color should be yellow with green, if it reaches 80% of the color should be yellow, if it reaches 90% of the color should be yellow with purple, and if the gold content reaches 10%, it should be red. The higher the purity of gold, the darker the color will be
gold with dark reddish yellow fineness and purity above 95%
it presents light reddish yellow gold with a purity of 90-95%
showing pale yellow gold; The purity is 80-85%
it presents cyan yellow gold with a purity of 65-70%
gold with excellent blue and white light, with a purity of only 50-60%
while gold is slightly yellow and white, with a purity of less than 50%
in addition to the color, you can also identify the gold content of gold jewelry from other aspects:
from the appearance, the surface of gold jewelry is bright and clean, without obvious processing traces, nor obvious sharp corners, and the feel is smooth. The surface is free of pores and impurities, which is the perfect gold jewelry
when identifying pure gold, you can try its hardness. If the hardness is too high, it cannot be pure gold
when more than 99% of the real gold is thrown on the hard ground, it will make a "click" sound without rhyme or elasticity. The false or low quality gold sounds are crisp without dullness. Generally, it makes a "Dangdang" sound. The sound is loud, crisp and sharp, and there are aftersounds and bounces
burn jewelry and observe its color change after cooling. When burning, be careful not to burn the jewelry out of shape. If it is pure gold, the surface will still be golden after burning; If the color is black, it is not pure gold
Gold jewelry can be divided into 24K (more than 99% gold content), 22K (91.7% gold content), 18K (75% gold content), 14K (58.33% gold content), 12K (50% gold content), etc. When buying gold jewelry, you can identify it from the following aspects
1. Color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent
2. Weigh the weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation
3. See rhyme: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce
4. Try to be soft and hard: the higher the fineness of gold jewelry, the softer it is and the less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needles. It will not break when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones.
Gold jewelry can be divided into 24K (gold content above 99%), 22K (gold content 91.7%), 18K (gold content 75%), 14K (gold content 58.33%), 12K (gold content 50%), etc. When buying gold jewelry, you can identify it from the following aspects
color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent
weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is closely related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content is. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation
see rhyme: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter sound. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce
try to be soft and hard: the higher the fineness of gold jewelry, the softer and less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needle. It will not break lines when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones
Gold jewelry can be divided into 24K (gold content above 99%), 22K (gold content 91.7%), 18K (gold content 75%), 14K (gold content 58.33%), 12K (gold content 50%), etc. When buying gold jewelry, you can identify it from the following aspects
color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent
weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation
see phonology: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter sound. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce
try to be soft and hard: the higher the fineness of gold jewelry, the softer and less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needles. It will not break lines when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones.
First of all, from the surface color, if the gold jewelry reaches 70% of the gold content, the color should be yellow with green, if it reaches 80% of the color should be yellow, if it reaches 90% of the color should be yellow with purple, and if the gold content reaches 10%, it should be red. The higher the purity of gold, the darker the color will be
gold with dark reddish yellow fineness and purity above 95%
it presents light reddish yellow gold with a purity of 90-95%
showing pale yellow gold; The purity is 80-85%
it presents cyan yellow gold with a purity of 65-70%
gold with excellent blue and white light, with a purity of only 50-60%
while gold is slightly yellow and white, with a purity of less than 50%
in addition to the color, you can also identify the gold content of gold jewelry from other aspects:
from the appearance, the surface of gold jewelry is bright and clean, without obvious processing traces, nor obvious sharp corners, and the feel is smooth. The surface is free of pores and impurities, which is the perfect gold jewelry
when identifying pure gold, you can try its hardness. If the hardness is too high, it cannot be pure gold
when more than 99% of the real gold is thrown on the hard ground, it will make a "click" sound without rhyme or elasticity. The false or low quality gold sounds are crisp without dullness. Generally, it makes a "Dangdang" sound. The sound is loud, crisp and sharp, and there are aftersounds and bounces
burn jewelry and observe its color change after cooling. When burning, be careful not to burn the jewelry out of shape. If it is pure gold, the surface will still be golden after burning; If the color is black, it is not pure gold
Gold jewelry can be divided into 24K (more than 99% gold content), 22K (91.7% gold content), 18K (75% gold content), 14K (58.33% gold content), 12K (50% gold content), etc. When buying gold jewelry, you can identify it from the following aspects
1. Color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent
2. Weigh the weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation
3. See rhyme: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce
4. Try to be soft and hard: the higher the fineness of gold jewelry, the softer it is and the less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needles. It will not break when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones.
Gold jewelry can be divided into 24K (gold content above 99%), 22K (gold content 91.7%), 18K (gold content 75%), 14K (gold content 58.33%), 12K (gold content 50%), etc. When buying gold jewelry, you can identify it from the following aspects
color discrimination: as the saying goes, gold is "seven green, eight yellow, nine purple and ten red". Experts believe that 70% of the jewelry containing gold is yellow with blue, 80% of the gold is yellow, 90% of the gold is yellow with purple, and 100% of the gold is red. Pure gold is softer and generally not used for inlaid jewelry. Therefore, any inlaid gold jewelry claiming to be 24K must be fraudulent
weight: the specific gravity of gold is 19.3 g / cm3, and the fineness is closely related to the specific gravity. When the specific gravity is close to 19.3, the higher the pure gold content is. When the specific gravity is 18.5, the gold content is 95%, and when the specific gravity is 17.8, the gold content is 90%, and so on. As long as the specific gravity is measured, the fineness of gold jewelry can be known. But most people can feel a sense of precipitation
see rhyme: when gold jewelry with high quality is thrown on the concrete floor, there will be a dull clatter sound. It has sound but no rhyme and no strength. It is commonly known as "dead sound". On the contrary, the gold ornaments of low quality, thrown on the concrete floor, have a rhyme and a sharp sound, and have a slight bounce
try to be soft and hard: the higher the fineness of gold jewelry, the softer and less elastic it is. The real gold will have light marks when it is bitten by teeth or scratched by needle. It will not break lines when it is folded by hand, and it will not change color after burning (not at extremely high temperature). The opposite is true for the low-quality and fake ones