5 thoughts on “How many diamonds are divided into levels? What are the standards of distinction?”
Kevin
The standard for judging the quality of diamond ring is 4C standards, that is, carats, color, clarity, and cutting. The carat of the diamond ring is the weight of the diamond ring. Under the same conditions, the larger the weight, the higher the price; the color of the diamond ring is roughly divided into 7 levels, which are D, E, F, G-H, I-J, K-M, N-Z, n-z, n-z, n-z, n-z Essence In colorless to color; the clarity of diamond ring is divided into 5 levels, LC, VVS, VS, SI, P, from flawless to flaws; there are six levels of diamond ring, IDEAL, IDEAL , Excellent, Very Good, Good, Fair, Poor, Ideal's cutting is exquisite products. The diamond level and price are closely related. The level of diamond ring can determine the price to a certain extent. One carat diamonds generally cost 30,000 to 70,000. Of course, other factors will also affect the price of diamond rings. For example, brands, the prices of different brand diamond rings are also different. 1. Weight. Diamonds are units that are measured by carats. The so -called things are rare, and large diamonds are more rare than small diamonds. Therefore, the carat of diamonds becomes its value index. The more diamonds have a weight, the price naturally increases. 1 gram = 5 carats, 1 carat = 100 points. . The color of diamonds: The color of the American Gem Institute, from colorless to pale yellow, is divided into 23 colors. Trouting is the highest level. The common level of malls is i-J color. . The clarity of diamonds: The clarity from high to low is divided into: FL (perfect) level, IF (flawless) level, VVS (extremely micro flaw), VS (micro flaw), SI (SI ( Small inner content) grade, P level (inner content) grade. The common diamonds in jewelry shops are SI. That is, "there is no flaw under the naked." . Cutting of diamonds: Cutting refers to the geometric shape and arrangement of various petals of the finished naked diamond. The cutting is divided into cutting ratio, polishing, and modification. Each item has five levels, from high to low in order is Excellent, VeryGood, Good, FAIR, Poor. Generally, what you see is standard round diamond -type cutting. The top -cut stones can reach the closest percentage for light reflexes, that is, three E X (Excellent) cutting, but this cutting price is slightly more expensive because it is out of its output. The rate is relatively low, which is about 5%higher than the price of the three EX cuts, but the color of the three EX stones is definitely the most gorgeous. In the other three certain cases of 4C standards, the quality of cutting is also important! After cutting, the diamond grade VS and diamond fire color also bloom. 5. Diamond origin: When it comes to diamonds, people will think of South Africa. Needless to say, South Africa is the country that produces the best diamonds in the world. Diamondin produced in South Africa is famous for its large particles and good quality. 50%of the diamond -murmical mirroring from the mine can reach the gem level. Zaki diamond ring, the most well -known diamond ring brand in China, is produced in Kingsabaryan, South Africa. Extension information: diamond appraisal method grade: This diamond hardness is extremely high. You can observe the waist of the diamond. If it is a sand -like waist, it is most suitable for this method. Because the diamond is harder than any imitation product, it will not appear thin stripes like a counterfeit. The same is harder because diamonds are better than imitation, and the face lines of imitation are often more dull than the diamond feeling, and the face line of diamonds must be sharp. The principles of diamond ratio ratio are harder, and the face lines of imitation are often worn. 1. The gravity test method The proportion of the proportion of gemstones on the market; we can use a 3.32 specific solution to test the true fake diamonds. The proportion of natural diamonds is 3.52, and all natural diamonds will sink in the gravity water, so all gems floating on the proper liquid can be certain that it is not a diamond. 2, penetrating observation method diamond has a high discount rate, and the higher the discount rate, the stronger the light reflection force, and the lower the perspective. You can prepare a piece of paper with a straight line, and the two unknown diamonds to be determined are facing down, covering the straight line. Straight lines are definitely not natural diamonds. 3, parenting method diamonds have a "oil absorption" for oil, and imitation diamonds have no characteristics. Put the diamond with a small amount of oil on the face and rub the diamond with your thumb. The thumb will feel a kind of sticky, not easy to slide, and imitation diamonds will make the thumb feel smooth [1]. 4, qi test The natural diamond heat transfer ability is good, and the heat is scattered fast. The diamonds that are about to be tested are close to the mouth, gently breathe, so that the tested diamonds are covered with a layer of light mist. At this time, the diamond fog volatilizes immediately. If it is a natural diamond, the fog will immediately dispersing. It will be dispersed for a while to imitate the diamond. 5, measurement and weight 1 natural diamonds with carats are about 6.50 mm (0.65 cm). Large gap. 6. Looking at the growth point In observing under the magnifying glass, there are often grooves and triangular growth points on the crystal surface of the real diamond, and there are three categories: ① ordinary glass with alumina, due to the refractive index and the refractive index and the refractive index and The color dispersing improves, it is easy to get in mistake, but the hardness is low. The chemical synthesis of sapphire and colorless spine -free spinel are imitated with close hardness, but the refractive index is low and there is a dual refractive phenomenon. It can be seen under the magnifying glass. Reference materials Source: Baidu Encyclopedia-Diamond 4C classification Reference materials Source: Baidu Encyclopedia-Diamond Appraisal Reference Data Source: Baidu Encyclopedia-Diamond 4C
Those who know diamonds should know that the value and quality of diamonds are determined by the weight, cutting, color and clarity of diamonds, which is the 4C standard founded by the GIA American Gem Institute. The process of diamond quality certification is widely used around the world. So how is the specific diamond 4C level divided? diamond weight cact
diamond weight is usually calculated in carat Essence Many people should have the larger idea of diamonds, the more expensive the idea. In fact, this statement is not completely right. It needs to be added with the prerequisite, that is, in other conditions that are similar. Prior to mentioning, as the weight of diamond increases, the value of diamonds increases geometrically. Diamonds with the same weight will be far from cutting, clarity and color.
Cut The cutting of the diamond refers to the accuracy of the diamond cutting ratio and the perfection of the decoration. Only cutting in 4C is directly affected by human. The good or bad of cutting affects the fire color and brightness of the diamond. Good cuts should reflect the brightness and fire color of the diamond as much as possible, and try to keep the rough weight. According to GIA standards, cutting from high to low is into ideal cutting, very good good, good work (good), general cut (fair), POOR (POOR), etc. Level.
diamond clarity diamond clarity, that is, the visual cleanliness of diamonds, refers The degree of characteristics. The rating of diamond clarity is performed under 10 times large mirror. According to the GIA standard, the diamond clarity is from high to low grades: FL grade, observed under 10 times the large mirror, diamonds have no inner content and surface on the surface Bad defects; IF level, observed under 10 times in large mirror, there is no internal content inside the diamond, and there are insignificant flaws on the surface; VVS level, observing under 10 times large mirror, there is extremely small inside the diamond. Black defects. The difference between VVS1 and VVS2 is the latter that include extremely small cotton -shaped points and small stubbles. VS level, observed under 10 times the large mirror, there are tiny internal contents inside the diamond. SI level, observed under 10 times the large mirror, diamonds have clearly visible flaws. level I, observed under 10 times the large mirror, diamond defects are obvious, and the naked eye can be visible.
The diamond color color For most diamonds, the diamond color mainly refers to the colorlessness of the diamond. According to the GIA standard, the diamond color level is divided into D-Z colors from high to low. From D to Z, as the color deepen, the diamond level gradually decreases. D-F belongs to colorless grade; G-J is close to colorless grade; K-M is light yellow; below n is pale yellow. The above is a general introduction about the diamond grading. Before buying a diamond ring, it is necessary to understand the diamond 4C grading. This will help everyone choose a better quality diamond ring.
Diamond grade evaluation includes four aspects: color column, weight cact, clarity Clarity, and cutting Cut. The standard for the quality evaluation of diamonds. It includes four aspects: color color, weight cact, clarity clarity, and cutting Cut. Because the first letters of their four words are C, they are called 4C grading. This is an international general quality evaluation system. i do diamond ring , color and other nouns, what do these words mean and how do they divide the level? (1) Colour: The best colorless, the deeper the color, the worse the quality. In the color grading of colorless diamonds, the top color is D color, and it is arranged to Z in turn. We only say that from D to J's color level, D-G is a colorless level, G-J is a near-color level, from K. There is basically no sense of collection and wearing. The diamond clarity classification each diamond has internal content, and the number, size, shape, and color of the inside will determine the clarity and characteristics of each diamond. Most of the diamond contains cannot be identified by the naked eye. The less inner containing, the more light refraction, making it double. We can use 10 times the large mirror to find a difference. The classification standards of the United States are: FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, I1, I2, I3. (Note: FL is the best, decreases in order) Ring The color classification of diamonds Most of the gem-level diamonds, the color is colorless-light yellow color series. When identifying the color of the diamond, compare the appraisal diamond with a set of international standard ratio than color stones. of. There are other colors of diamonds, such as: brown, orange, pink, blue and so on. i do diamond ring diamond weight grading The weight of diamond is the easiest characteristic of 4C. Like other gems, the weight of the diamond is also measured with carats. Diamonds of the same quality, the larger the weight, the more precious. The word carat comes from a kind of "small horn tree" seed. Because the weight of this seed has an amazing consistency, the weight of the diamond is used in the early days, and one carat is equal to the weight of a small horn tree seed. The current standard is that one carat is equal to 0.2g, and each carat is divided into 100 copies (or equivalent to 200 mg), so a 25 -point diamond weighs 0.25 carats. The diamond cutting level Ideal cutting: represents the standard that can only achieve first -class high -quality diamonds with only 3%. This cut makes the diamond reflect almost all the lights entering the diamond. An elegant and outstanding cut. Very easy to cut: It means about 15%of diamonds. It can reflect the light of diamonds and cut standards, but the price is slightly lower. Good cut: represent about 25%of diamond cut. It is the diamond reflected most of the light that enters the diamond.
Regarding how diamonds are divided into grades, taking white diamonds as an example, it is mainly divided from 4C, namely: weight, color, clarity, and cutting. First of all, the weight of the diamond is divided by the unit carat. One carat = 0.2 grams = 100 points. Under normal circumstances, 1 carat is a dividing line. Diamonds smaller than 1 carat are significantly lower than 1 carat diamond. It color grading: Diamonds are first divided into colored diamonds and white diamonds. Among them, the more precious and rare are color diamonds such as red, pink, blue, and green. The most common is white diamonds and yellow diamonds. The more pure the color diamonds, the higher the color, the higher the transparency, and the higher the price. Under the magnifying glass, the color of the diamond is many. Taking white diamonds as an example, the 100-point color diamond rating is D-color, 99 points are E-color, and so on, from D-Z. Diamond clarity: The clarity of diamond is simply the problem of the impurities inside the diamond. If the less impurities inside the diamond, the more unknown the location, the higher the diamond level, and otherwise it is low. The ratings of the clarity are from good to secondary order: FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, SI3, P/i2, P/i3. This: The reason why diamond shows the glorious side is mainly after cutting, which is the problem of the cutting of the diamond. How to classify the diamond is also very important to cut this piece. High -level cutting levels, diamonds are beautiful and high. The rating of cutting is from good to secondary order: EX, VG, G, P
Diamond level is determined by the diamond 4C, and the 4C is weight, color, clarity, and cutting. Weight: carat is the quality (weight) unit of gems. It is now set to be equal to 0.2 grams or 200 mg, and one carat is divided into 100 points. color: diamond color level from the highest D-lowest Z. It is recommended to choose the color of J -colors and above. The color level below the J color can be seen with the yellow tone with the naked eye. The clarity: The clarity level is divided into the highest level F, and IF, VVS, VS, SI, I. It is recommended to choose VS and above levels. There are certain impurities but the naked eye is not visible. The cutting: Diamond level starts from the highest level EX, and then goes down to VG, G, F, P. Only a good cut can show the brightness, fire color, flashing. The poor proportion of diamonds will produce light leakage, and the dark fish eye diamonds in the center will lose glory. Therefore, diamond cutting is recommended to choose 3EX level. The choice of a suitable diamond ring, depending on the quality of diamonds and the diamond brand. The good and bad of the diamond brand is determined by various factors such as media reports, crowd attention, brand characteristics, public recognition, and brand influence. Dmallovo (Marley) diamonds, strictly select each diamond, start from the source, select high -quality rough, diamond traceability, and each diamond has its own identity certificate. National True Love Experience Store, online appointment, offline experience, worry -free service.
The standard for judging the quality of diamond ring is 4C standards, that is, carats, color, clarity, and cutting. The carat of the diamond ring is the weight of the diamond ring. Under the same conditions, the larger the weight, the higher the price; the color of the diamond ring is roughly divided into 7 levels, which are D, E, F, G-H, I-J, K-M, N-Z, n-z, n-z, n-z, n-z Essence
In colorless to color; the clarity of diamond ring is divided into 5 levels, LC, VVS, VS, SI, P, from flawless to flaws; there are six levels of diamond ring, IDEAL, IDEAL , Excellent, Very Good, Good, Fair, Poor, Ideal's cutting is exquisite products.
The diamond level and price are closely related. The level of diamond ring can determine the price to a certain extent. One carat diamonds generally cost 30,000 to 70,000. Of course, other factors will also affect the price of diamond rings. For example, brands, the prices of different brand diamond rings are also different.
1. Weight. Diamonds are units that are measured by carats. The so -called things are rare, and large diamonds are more rare than small diamonds. Therefore, the carat of diamonds becomes its value index. The more diamonds have a weight, the price naturally increases. 1 gram = 5 carats, 1 carat = 100 points.
. The color of diamonds: The color of the American Gem Institute, from colorless to pale yellow, is divided into 23 colors. Trouting is the highest level. The common level of malls is i-J color.
. The clarity of diamonds: The clarity from high to low is divided into: FL (perfect) level, IF (flawless) level, VVS (extremely micro flaw), VS (micro flaw), SI (SI ( Small inner content) grade, P level (inner content) grade. The common diamonds in jewelry shops are SI. That is, "there is no flaw under the naked."
. Cutting of diamonds: Cutting refers to the geometric shape and arrangement of various petals of the finished naked diamond. The cutting is divided into cutting ratio, polishing, and modification. Each item has five levels, from high to low in order is Excellent, VeryGood, Good, FAIR, Poor. Generally, what you see is standard round diamond -type cutting.
The top -cut stones can reach the closest percentage for light reflexes, that is, three E X (Excellent) cutting, but this cutting price is slightly more expensive because it is out of its output. The rate is relatively low, which is about 5%higher than the price of the three EX cuts, but the color of the three EX stones is definitely the most gorgeous.
In the other three certain cases of 4C standards, the quality of cutting is also important! After cutting, the diamond grade VS and diamond fire color also bloom.
5. Diamond origin: When it comes to diamonds, people will think of South Africa. Needless to say, South Africa is the country that produces the best diamonds in the world. Diamondin produced in South Africa is famous for its large particles and good quality.
50%of the diamond -murmical mirroring from the mine can reach the gem level. Zaki diamond ring, the most well -known diamond ring brand in China, is produced in Kingsabaryan, South Africa.
Extension information:
diamond appraisal method grade:
This diamond hardness is extremely high. You can observe the waist of the diamond. If it is a sand -like waist, it is most suitable for this method. Because the diamond is harder than any imitation product, it will not appear thin stripes like a counterfeit.
The same is harder because diamonds are better than imitation, and the face lines of imitation are often more dull than the diamond feeling, and the face line of diamonds must be sharp.
The principles of diamond ratio ratio are harder, and the face lines of imitation are often worn.
1. The gravity test method
The proportion of the proportion of gemstones on the market; we can use a 3.32 specific solution to test the true fake diamonds. The proportion of natural diamonds is 3.52, and all natural diamonds will sink in the gravity water, so all gems floating on the proper liquid can be certain that it is not a diamond.
2, penetrating observation method
diamond has a high discount rate, and the higher the discount rate, the stronger the light reflection force, and the lower the perspective. You can prepare a piece of paper with a straight line, and the two unknown diamonds to be determined are facing down, covering the straight line. Straight lines are definitely not natural diamonds.
3, parenting method
diamonds have a "oil absorption" for oil, and imitation diamonds have no characteristics. Put the diamond with a small amount of oil on the face and rub the diamond with your thumb. The thumb will feel a kind of sticky, not easy to slide, and imitation diamonds will make the thumb feel smooth [1].
4, qi test
The natural diamond heat transfer ability is good, and the heat is scattered fast. The diamonds that are about to be tested are close to the mouth, gently breathe, so that the tested diamonds are covered with a layer of light mist. At this time, the diamond fog volatilizes immediately. If it is a natural diamond, the fog will immediately dispersing. It will be dispersed for a while to imitate the diamond.
5, measurement and weight
1 natural diamonds with carats are about 6.50 mm (0.65 cm). Large gap.
6. Looking at the growth point
In observing under the magnifying glass, there are often grooves and triangular growth points on the crystal surface of the real diamond, and there are three categories: ① ordinary glass with alumina, due to the refractive index and the refractive index and the refractive index and The color dispersing improves, it is easy to get in mistake, but the hardness is low. The chemical synthesis of sapphire and colorless spine -free spinel are imitated with close hardness, but the refractive index is low and there is a dual refractive phenomenon. It can be seen under the magnifying glass.
Reference materials Source: Baidu Encyclopedia-Diamond 4C classification
Reference materials Source: Baidu Encyclopedia-Diamond Appraisal
Reference Data Source: Baidu Encyclopedia-Diamond 4C
Those who know diamonds should know that the value and quality of diamonds are determined by the weight, cutting, color and clarity of diamonds, which is the 4C standard founded by the GIA American Gem Institute. The process of diamond quality certification is widely used around the world. So how is the specific diamond 4C level divided?
diamond weight cact
diamond weight is usually calculated in carat Essence Many people should have the larger idea of diamonds, the more expensive the idea. In fact, this statement is not completely right. It needs to be added with the prerequisite, that is, in other conditions that are similar. Prior to mentioning, as the weight of diamond increases, the value of diamonds increases geometrically. Diamonds with the same weight will be far from cutting, clarity and color.
Cut
The cutting of the diamond refers to the accuracy of the diamond cutting ratio and the perfection of the decoration. Only cutting in 4C is directly affected by human. The good or bad of cutting affects the fire color and brightness of the diamond. Good cuts should reflect the brightness and fire color of the diamond as much as possible, and try to keep the rough weight. According to GIA standards, cutting from high to low is into ideal cutting, very good good, good work (good), general cut (fair), POOR (POOR), etc. Level.
diamond clarity
diamond clarity, that is, the visual cleanliness of diamonds, refers The degree of characteristics. The rating of diamond clarity is performed under 10 times large mirror. According to the GIA standard, the diamond clarity is from high to low grades:
FL grade, observed under 10 times the large mirror, diamonds have no inner content and surface on the surface Bad defects;
IF level, observed under 10 times in large mirror, there is no internal content inside the diamond, and there are insignificant flaws on the surface;
VVS level, observing under 10 times large mirror, there is extremely small inside the diamond. Black defects. The difference between VVS1 and VVS2 is the latter that include extremely small cotton -shaped points and small stubbles.
VS level, observed under 10 times the large mirror, there are tiny internal contents inside the diamond.
SI level, observed under 10 times the large mirror, diamonds have clearly visible flaws.
level I, observed under 10 times the large mirror, diamond defects are obvious, and the naked eye can be visible.
The diamond color color
For most diamonds, the diamond color mainly refers to the colorlessness of the diamond. According to the GIA standard, the diamond color level is divided into D-Z colors from high to low. From D to Z, as the color deepen, the diamond level gradually decreases. D-F belongs to colorless grade; G-J is close to colorless grade; K-M is light yellow; below n is pale yellow.
The above is a general introduction about the diamond grading. Before buying a diamond ring, it is necessary to understand the diamond 4C grading. This will help everyone choose a better quality diamond ring.
Diamond grade evaluation includes four aspects: color column, weight cact, clarity Clarity, and cutting Cut.
The standard for the quality evaluation of diamonds. It includes four aspects: color color, weight cact, clarity clarity, and cutting Cut. Because the first letters of their four words are C, they are called 4C grading. This is an international general quality evaluation system.
i do diamond ring
, color and other nouns, what do these words mean and how do they divide the level? (1) Colour: The best colorless, the deeper the color, the worse the quality. In the color grading of colorless diamonds, the top color is D color, and it is arranged to Z in turn. We only say that from D to J's color level, D-G is a colorless level, G-J is a near-color level, from K. There is basically no sense of collection and wearing.
The diamond clarity classification
each diamond has internal content, and the number, size, shape, and color of the inside will determine the clarity and characteristics of each diamond. Most of the diamond contains cannot be identified by the naked eye. The less inner containing, the more light refraction, making it double. We can use 10 times the large mirror to find a difference. The classification standards of the United States are: FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, I1, I2, I3. (Note: FL is the best, decreases in order) Ring
The color classification of diamonds
Most of the gem-level diamonds, the color is colorless-light yellow color series. When identifying the color of the diamond, compare the appraisal diamond with a set of international standard ratio than color stones. of. There are other colors of diamonds, such as: brown, orange, pink, blue and so on.
i do diamond ring
diamond weight grading
The weight of diamond is the easiest characteristic of 4C. Like other gems, the weight of the diamond is also measured with carats. Diamonds of the same quality, the larger the weight, the more precious. The word carat comes from a kind of "small horn tree" seed. Because the weight of this seed has an amazing consistency, the weight of the diamond is used in the early days, and one carat is equal to the weight of a small horn tree seed. The current standard is that one carat is equal to 0.2g, and each carat is divided into 100 copies (or equivalent to 200 mg), so a 25 -point diamond weighs 0.25 carats.
The diamond cutting level
Ideal cutting: represents the standard that can only achieve first -class high -quality diamonds with only 3%. This cut makes the diamond reflect almost all the lights entering the diamond. An elegant and outstanding cut. Very easy to cut: It means about 15%of diamonds. It can reflect the light of diamonds and cut standards, but the price is slightly lower. Good cut: represent about 25%of diamond cut. It is the diamond reflected most of the light that enters the diamond.
Regarding how diamonds are divided into grades, taking white diamonds as an example, it is mainly divided from 4C, namely: weight, color, clarity, and cutting.
First of all, the weight of the diamond is divided by the unit carat. One carat = 0.2 grams = 100 points. Under normal circumstances, 1 carat is a dividing line. Diamonds smaller than 1 carat are significantly lower than 1 carat diamond.
It color grading: Diamonds are first divided into colored diamonds and white diamonds. Among them, the more precious and rare are color diamonds such as red, pink, blue, and green. The most common is white diamonds and yellow diamonds. The more pure the color diamonds, the higher the color, the higher the transparency, and the higher the price. Under the magnifying glass, the color of the diamond is many. Taking white diamonds as an example, the 100-point color diamond rating is D-color, 99 points are E-color, and so on, from D-Z.
Diamond clarity: The clarity of diamond is simply the problem of the impurities inside the diamond. If the less impurities inside the diamond, the more unknown the location, the higher the diamond level, and otherwise it is low. The ratings of the clarity are from good to secondary order: FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, SI3, P/i2, P/i3.
This: The reason why diamond shows the glorious side is mainly after cutting, which is the problem of the cutting of the diamond. How to classify the diamond is also very important to cut this piece. High -level cutting levels, diamonds are beautiful and high. The rating of cutting is from good to secondary order: EX, VG, G, P
Diamond level is determined by the diamond 4C, and the 4C is weight, color, clarity, and cutting.
Weight: carat is the quality (weight) unit of gems. It is now set to be equal to 0.2 grams or 200 mg, and one carat is divided into 100 points.
color: diamond color level from the highest D-lowest Z. It is recommended to choose the color of J -colors and above. The color level below the J color can be seen with the yellow tone with the naked eye.
The clarity: The clarity level is divided into the highest level F, and IF, VVS, VS, SI, I. It is recommended to choose VS and above levels. There are certain impurities but the naked eye is not visible.
The cutting: Diamond level starts from the highest level EX, and then goes down to VG, G, F, P. Only a good cut can show the brightness, fire color, flashing. The poor proportion of diamonds will produce light leakage, and the dark fish eye diamonds in the center will lose glory. Therefore, diamond cutting is recommended to choose 3EX level.
The choice of a suitable diamond ring, depending on the quality of diamonds and the diamond brand. The good and bad of the diamond brand is determined by various factors such as media reports, crowd attention, brand characteristics, public recognition, and brand influence.
Dmallovo (Marley) diamonds, strictly select each diamond, start from the source, select high -quality rough, diamond traceability, and each diamond has its own identity certificate. National True Love Experience Store, online appointment, offline experience, worry -free service.