How to distinguish the authenticity of the diamond ring

Want to know whether the diamond in your hand is true or not? Most people are very curious and can't wait to know, but don't know how to start, so they have to ask professional jewelry people. But in fact, you don't have to do it like Holmes to find out the autumn of the diamond. You only need a little light, some water, breath, plus a jewelry commercial magnifying glass, you can start to identify it yourself. Here I will tell you more details you need to pay attention to and take you into the wonderful diamond world.
The diamond at home
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. Put the gem in your hand in front of your mouth, and then breathe. If the fog stays for a long time, there are several seconds, it is probably false. Really diamonds are very fast, and they will not easily fog. Even if you are angry first, wait a minute to check, diamonds are still much clearer than fake diamonds.
In a certain diamonds to be used to put it as a real diamond. Comparison is more helpful. You can see that the real diamond is not affected by the fog, and the fake diamonds will be covered with a layer of water mist. If you repeat the fake diamonds, you can see that the mist is getting thicker and thicker. Every time, the fog on the surface of the fake diamond is getting more and more obvious, while the real diamonds are always clear and bright.
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The view of the base and ring. Real diamonds are unlikely to be on a cheap base. [1] Generally speaking, there will be information on precious metals inside the base (10K, 14K, 18K, 585, 750, 900, 950, PT, PLAT, etc.), which are better. The meaning of the "C.Z." logo is that diamonds are not real diamonds. [2] This logo represents a cubic oxidation and is an artificial synthetic gemstone.
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The diamond with jewelry to put the large mirror. You can borrow one from the jewelry shop. Natural diamonds often have some small flaws, which can be seen by a magnifying glass. What you want to find by the magnifying glass is the flaws of mineral formation, or very delicate different colors. Both of these phenomena are one of the real evidence. Although this diamond may not be perfect, it is at least true.
The cube oxidation and laboratory synthetic diamonds (the latter can usually pass all other types of identification) without flaws. This is because artificial diamonds are synthesized in a sterile environment, not naturally formed in the natural laboratory of nature. Therefore, if the gem is too perfect, it is likely to be fake.
, real diamonds can be flawless. But this is not a real standard for identifying diamonds. Be sure to rule out fake diamonds in other ways.
The identification naked drill is true and false
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The refractive index. The refractive light of the diamond is very sharp and bright, and the light can pass through without hindrance, showing a dazzling glory. Glass or quartz materials are inferior to the gloss, because the refractive index of these materials is low. The refractive index of the stone is extremely difficult to change, even if it is cut professional, because the refractive index is one of the attributes of the stone itself. Therefore, by carefully checking the refractive index, you can more clearly detect the authenticity of the diamond. There are some ways here:
M newspaper method: upside down the diamond up and down, put it on a newspaper. If you can read the text on the newspaper through the diamond, or even if you can see the vague black traces, then this stone is 80 % fake. Diamond refractive index is very high, so you don't see the handwriting on the newspaper through diamonds. (There are also exceptions: if the cutting is irregular, you may still see the words in the newspaper.)
Is ink dot method: Draw a ink dot on a piece of white paper, put the gem in ink dots on the ink dot, center. Look at the ink point vertically. If the stone is not a real diamond, you will see a ring reflected figure on the stone. And if it is a real diamond, you will not see this ink through the diamond. [3]
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Observe the reflection light. The reflection light of real diamonds will show different degrees of gray. Observe from the top of the diamond. If you see the rainbow -colored reflex light, then either the diamond level is relatively low or it is not a real diamond. [4]
mi, you can also see if there is any flash. Real diamonds are brighter than glass and quartz stone of the same size. You can also find a piece of glass or quartz for comparison.
sm don't confuse the flash and reflection light. The cutting of the gemstones affects the strength and brightness of the refracted light, which affects the strength of the flash. The reflection light is the color of the refraction light. So when you look at the flash, remember to see the strength of the light, not the color.
does a kind of stone, brighter than the light of diamonds, that is, carbon silica, also called Mosang stone. This gem is extremely close to the diamond, and it is difficult for professional jewelry dealers to distinguish. If you do n’t want to distinguish Mozon and diamonds with special tools, you need to take the gem into your eyes and use the light of the handicap to use the gemstone. If you can see the rainbow -colored reflection, then it means that the gem has a dual refractive properties, which is Mozang stone, not a diamond.
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This to throw the gem in a glass of water to see if it will sink to the bottom. Due to high density, real diamonds will sink, and fake diamonds often float, or half of the glass.
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The heating stones, depending on whether it will be broken. Heat for 30 seconds and then throw it directly into a cup of cold water. For a short time, thermal expansion and contraction can cause fragile materials, such as glass and quartz stones to crack from the inside. And the real diamonds will not have anything.
In professional methods to identify diamonds
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It can find someone to do a hot probe test. The crystal structure of the diamond is stable and firm, so the heat dissipation is fast. Therefore, it is not easy to heat the diamond. The probe test is usually free for 30 seconds. Moreover, this test will not harm any harm to gems.
This and heating gems mentioned above are almost the same. It's just that this method does not use severe thermal expansion and contraction to see if the gemstone will be broken, but to see how long the gem can warm up.
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The people can find someone to do diamond/Mozang Stone test. Many jewelry vendors have specially used diamonds and Mozang stone together. [5]
The traditional thermal probe testing method cannot help you distinguish Mozang stone and diamonds. Therefore, be sure to ensure that the testing tester is used, not the temperature tester.
If you are going to identify diamonds with a large number of appraisals at home, you can buy tools online or specialized diamond equipment shops.
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The microscope appraisal method. Place the top surface of the diamond under the microscope. Gently rotate the diamond with a mule. If there is a weak orange light between different cut surfaces, then this so -called diamond may actually be cubic oxidation. It may also be defects inside the diamond, and some people fill these gaps with cubic oxidation. [6]
It the best effect, it is best to use 1200 times the microscope.
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This can be used to identify diamonds with high essence. Using balance can also identify the authenticity of diamonds. Cube oxidation is about 55%heavier than diamonds of the same volume and shape. [7] The very precise leveling scale can accurately reach carat or even smaller units, so it can be used to identify diamonds through weight comparison.
It, but to use this method, you must have a real diamond with a firm object size and shape. Otherwise, if there is nothing you can make a reference, it is difficult for you to figure out whether the weight in your hand is opposite.
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The diamonds can be identified under ultraviolet light. Many diamonds (but not all diamonds are like this) will show blue fluorescence under ultraviolet or dark light. So if you can see a medium -intensity or brighter blue light, it proves that the diamond is true. And if there is no blue light, it is undoubtedly a fake drill. However, some diamonds do not show fluorescence under ultraviolet rays. [8] If the fluorescence presented is green, yellow, or gray, it proves that the stone is Mozang stone. [9]
This through ultraviolet tests, you can at least reduce the scope of appraisal and eliminate some possibilities. However, it is best not to completely rely on test results to determine the authenticity of diamonds. Just as mentioned above, many diamonds will not show fluorescence under ultraviolet rays. Moreover, after special treatment, fake diamonds will also show fluorescence under ultraviolet light. Under normal circumstances, fake diamonds will no longer have fluorescence under ultraviolet rays. [10]
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X -ray identification method. The molecular structure of the diamond has rays penetrating. In other words, diamonds will not appear on the image of X -ray. The glass, cubic oxidation, and crystal lamps are only slightly ray penetration, so they will be clearly presented under X -rays.
If you want to do X -rays for diamonds, you can hand over the diamond to a professional diamond appraisal agency, or contact the local X -ray center center.
In evidence to prove that diamonds are true
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In finding more authoritative diamond appraisers. Most diamond retailers have their own gem experts and appraisers. However, many consumers still tend to find third -party experts to identify gems. If you plan to buy a diamond, or just want to know whether the one in your hand is true or false, then naturally want to know if the identification is accurate.
The appraisal is mainly two steps: the first step is to determine the category and quality of the gem, and the second step is the valuation. When choosing an independent appraiser, it is best to choose those who have a professional background, related education, or obtain a license from a gem appraisal agency. And these people are better to have no interest in jewelry shops. [11] In this way, you can at least ensure the scientificity of the appraisal.
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The question. In addition to identifying the authenticity of diamonds, good appraisers can also answer a series of questions such as gem quality and other questions to ensure that you will not be fooled by jewelry dealers. If you are preparing to buy diamonds or inherit diamonds, this is particularly important. The gem experts can tell you:
is the natural or artificial
whether the color of the gem is manually adjusted
whether the gem has received manual treatment, and the result of this treatment is permanent. Still whether the grade certificate provided by the gem itself and the jewelry dealer is matched.
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Remember to ask for appraisal. No matter what kind of appraisal method you choose, it is best to have a gem appraisal. Talk to your gem experts or appraisers. Certificate can prove that the authenticity of the diamond in your hand was verified by experts. If you want to buy a diamond that has not been seen, such as online shopping, certificate is particularly important, so remember to ask for demand.
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The check your certificate carefully. Not all certificates have head -up. There must be level certifications on the certificate, such as GIA, AGSL, LGP, PGGL, etc. [12] Either the appraiser himself must belong to professional institutions and cannot be employed by jewelry dealers.
The information on the certificate also contains many information about diamonds, such as carat weight, size, proportion, transparent level, color level, cutting level, and so on.
The certificates may also include other information:
The fluorescence, that is, the fluorescence presented by gems in ultraviolet light. [13]
The degree of polishing is the degree of smoothness of the surface.
The symmetry, that is, whether the two planes are the same.
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In your gemstone registration. Knowing the gemstone is true, whether it is identified by the laboratory or an independent appraiser, you should bring the diamond to the laboratory to register and register "fingerprints". This can ensure the ownership of diamonds, and no one can steal the beam to change the pillar without knowing it.
Like people, each diamond is unique. New technologies allow gem experts to quantify the uniqueness of each diamond and identify the "fingerprints" of diamonds. The level cost is usually less than $ 100, and it can be used as evidence when giving diamond -level insurance. If your diamond is stolen and the diamond has been registered with "fingerprint", then you can recover the diamonds and other documents such as the appraisal. [14]
Diamonds and other gems
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to identify synthetic diamonds. Of course, the diamond or synthetic diamond identification in the laboratory is still "true". The cost of synthetic diamonds is only a small part of the diamond ore from the diamond ore, but the chemical composition is the same as the natural diamond. Therefore, to distinguish between the two, you need to help special professional talents.
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The recognition of Mosangstone. Diamonds and Mozang Stone are very difficult to distinguish. Although Mozang stone is more flashing than diamonds and double refraction, it is still difficult to see for ordinary people. You can try to let a light through the gem in your hand. If the light reflected is colorful and very dazzling, then it is likely to be Mosangstone. [15]
The response of diamonds and Mozangstones to temperature tests is also very similar. If you only use the diamond appraiser, even if you are actually Mosangstone in your hand, the test result will tell you that this is a real diamond. So even if the result of a diamond appraiser or a Mozang stone appraiser tells you that the diamond is true, it is still very important to do it again. Generally, professional jewelry chambers can use both diamonds or instruments of Mosangstone to test gems.
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The recognition of white Topa stone. Topa is also a gem that is very similar to diamonds and cannot be distinguished by the naked eye. However, white Topa stone is softer than diamonds. The hardness of the mineral can be tested by scratching with another mineral. If the gem can be scraped out of other minerals, and there is no effect itself, then it means that the hardness is strong. One of the hardest substances on the real diamond earth, so you can try to scrape test with the gems in your hands. If it is easy to scratch, it may be a white Topa stone or other softer substitutes.
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The recognition of white sapphire. Unlike people's common impression, sapphires are not always blue. In fact, there are such gems. The white sapphire is clear and transparent and is often used as a substitute for diamonds. If you find that the gem in your hand is hazy or like a layer of fog, and the contrast of the bright and dark of the gem is not very strong, then it is likely to be white sapphire. [16]
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The cube oxidation 锆. Cube oxidation is a synthetic gem, which is very similar to diamonds. The easiest way to identify is to see if the color of the gem is "fire". Cube oxidation will show an orange light, so it is better to recognize. Because this gem is artificial, it may seem clearer than natural diamonds, and natural diamonds often have some small flaws.
Is when there is light, cubic oxidation will also be wider than the spectral range of real diamond reflection. The glory and reflection light of real diamonds are almost colorless, while the reflex light of cubic oxidation is color. [17]
The very popular diamond appraisal method is to scrape the gem on the glass. According to people's universal views, if the gem is scraped through the glass without damage, it is diamond. However, high -quality cubic oxidation can also scrape the glass, so this method is not completely reliable. [18]
The tips for distinguishing authentic and false diamonds
In fact, regardless of authenticity, jewelry like it. What is wearing is that diamond is true or false? Since experts can be fooled, then you don't need to be too real about this. Only when you buy and sell diamonds, it is necessary to find it true or natural or natural.
If you want to figure it out exactly, I suggest you find an independent appraiser. However, looking for an independent appraiser, it costs at least about 200 to 500 yuan. Don't forget, don't let the diamond leave your sight. Some immoral jewelry dealers may steal beams and pillars. [19]
The warning of true and false diamonds
do not use diamonds to scrape things in order to identify or show off diamonds. Although the real diamonds will not leave scratches, you will break the diamond, because the diamond is hard, but it is crispy, so it is not so strong. [20] sandpaper can be used to identify the authenticity of diamonds, but it is not completely reliable. [21] Even if it is not true, it may pass this test because many gems are very hard. And if you don't pass it, you will be destroyed by the gem that you can test at will just because of insufficient hardness.
In fact, there is no way to identify the authenticity of diamonds percent of the certificates of authoritative institutions. If you want to buy diamonds from pawnshop, market, and even online, then risks naturally exist