Method 1: Check the color and texture.
1, see if the color of the stone is fine, soft and bright, and whether it has the luster of light reflected by water. Real jade is full and bright. In most cases, jadeite is not completely transparent or opaque, and it is generally between the two, with the same luster as water reflecting light. If this stone is dull in color, it is probably fake jade. Some jade is completely opaque, but this kind of jade is often of little value.
The stone with bubbles in it is probably fake jade.
Tip: In order to present the color of jade, people often use different means to process it. According to the different processing methods, jade is divided into three grades: A, B and C. Grade A refers to pure natural and unprocessed jade. This kind of jade may have a layer of wax to add color. B-grade jadeite is often chemically bleached to remove impurities and injected with strengthening polymers. Grade C jade refers to jade that has been chemically bleached and dyed to improve its color. As time goes on, this kind of jade may fade or change color.
2. See if the color of the whole jade is consistent. It should be neither perfect nor mottled. The real jade as a whole should have some color changes. This change should be unified. In other words, the whole stone should have the same pattern. The color of fake jade will be too perfect, or the pattern will be inconsistent, that is, it will look mottled. You can observe jade more carefully through the light.
Expert tips
Jerry ehrenwald
Jerry Ehrenwald, president and gemologist of the International Jewelry Association, is a gemologist in new york, USA, and a senior jeweler certified by the American Association of Appraisers. He is the former president of the International Jewelry Institute, and the American patent technology Laserscribe? The inventor of this technology used laser to carve unique marks on diamonds, such as DIN diamond identification code. He is a senior member of American Appraisers Association (ASA) and a member of new york 24k Jewelry Club, a social club limited to 200 top achievers in the jewelry industry.
Jerry ehrenwald
President and gemologist of the International Jewellery Association.
Put the stone under the light and look for irregularities. If you can see fibrous texture or bubbles on a stone, then the stone is generally fake.
3. Look for flaws on the jade surface, such as pits or rough places. Real jade usually has some minor flaws, such as irregular shape, potholes on the surface and so on. Jade that is too perfect is probably fake. This may not be suitable for identifying the jewelry you bought. The highest quality jade jewelry may be flawless.
Method 2: Do a simple test.
1. Throw the jade up, hold it in your hand and weigh it, whether it is important or not. The density of real jade is very high, so it will be heavier in appearance. Weigh this stone and feel its weight. You'd better find a different stone to compare, so that you can feel the weight of jade. Although this method is not very accurate, it is often used to judge the authenticity of jade articles.
Stick a stone on your face to see if it is cold enough. Jade is a kind of stone that is already very cold, so it will feel cold to the touch. Stick it on your face or neck to see if it feels cold. If not, it may be fake jade. Even if you stick a stone on your face for a few minutes, real jade won't get hot. Even if it is rubbed on the skin, it should still be cold.
Try to heat this jade by hand to see if it can keep a low temperature. Hold the stone tightly in your hand and hold it for 1 to 2 minutes to see if it will get hot. Real jade should still be cold to the touch, while fake jade may get warmer. Although the stone that remains cold after heating may not be real jade, this method may help you find the real thing from the fake.
Expert tips
Jerry ehrenwald
Jerry Ehrenwald, president and gemologist of the International Jewelry Association, is a gemologist in new york, USA, and a senior jeweler certified by the American Association of Appraisers. He is the former president of the International Jewelry Institute, and the American patent technology Laserscribe? The inventor of this technology used laser to carve unique marks on diamonds, such as DIN diamond identification code. He is a senior member of American Appraisers Association (ASA) and a member of new york 24k Jewelry Club, a social club limited to 200 top achievers in the jewelry industry.
Jerry ehrenwald
President and gemologist of the International Jewellery Association.
Experts believe that the temperature of jade can help you identify the true and false. Feel the feeling of holding the stone in your hand. Real jadeite takes a long time to heat. If your stone is heated for a short time and doesn't feel cold, it's probably fake.
4. Knock the real jade with the stone you want to test. This will help you determine the density of this stone. Knock a few more times and listen to their voices. Jade is hard, so it should make a crisp sound when it collides. If it sounds like plastic beads, it's probably fake. If there is no real jade, you can experiment with other stones. But even with real jade, this method may not be able to identify the authenticity of this stone.
5. Draw a line on the stone with your fingernail or metal piece. Do a simple scratch experiment. Mark the edge of the stone with your nails to see if there will be any scratches. Or find an inconspicuous place on the stone and draw it with scissors or a knife. If the stone will leave a scratch, it is probably not true. Real jade is a hard stone, which won't leave scratches easily.
Other methods: You can also do a scratch experiment with a heated pin to check whether the stone is dyed like jade. Heat the pin with hot water, and then draw a line on the stone surface with the pin to see if there will be scratches. If there is a scratch, it may be fake.
Method 3: Ask a jeweler for identification.
1, let jewelers identify the authenticity of jade. After professional training, jewelers can identify the authenticity of jewelry and strange stones. They will examine the stone with a magnifying glass to see if it conforms to the structure of real jade and look for traces of fakes. They will evaluate the composition of the stone and tell you whether it is true or not. Usually jewelers can do these tests as long as you are present.
Ask several jewelers to help you identify the authenticity of the stone and listen to different opinions.
2. Ask the jeweler to check the density of the gem. Jewelers can infer the density of gems through spring scales and equal volume displacement. Then they will compare the inferred density with the jade species density table to see if it meets the standards of jade. If it matches, it should be real jade. If it is not consistent with the density of the densitometer, it is probably not true. If you have concerns about density test, you can ask the jeweler about the test method before the test. They may show you the whole test process.
3. Let the jeweler evaluate the value of jade. One advantage of having a jeweler identify your gem is that he can give you an estimate. If your jade has been made into jewelry, the jeweler can identify the value of this jade and its accessories at the same time. Let the jeweler estimate the price of your jade and help you predict whether there is room for appreciation in the future. Please remember that such an assessment is only an estimate.
You'd better find more jewelers to help you identify the authenticity of jade, so as to better understand the value of this stone.
Tips If you really like jade and want high-quality jade, you can apply for a jewelry appraisal certificate to prove that your jade is A-grade jade. Most jewelers can provide you with this kind of appraisal service.
Warning: It is difficult for you to identify the authenticity of jade, so you must be careful when buying it. Before you spend a lot of money on precious stones, you'd better have them appraised by a professional jeweler.