Question 1: How to distinguish between true and false rubies? The difference between natural ruby and synthetic ruby is 1. There are many ways to synthesize ruby by inclusion method, mainly including flame melting method, flux method and hydrothermal method. Ruby synthesized by different methods has different inclusions, which need to be distinguished in professional laboratories. We only need to identify whether they are natural or synthetic, and we don't need to find a synthetic method. Synthetic rubies are also characterized by bright colors. And it is relatively uniform, and it is difficult for the naked eye to find the inclusions. But most natural rubies in the market have more or less obvious so-called cotton veins, that is, the combination of inclusions and internal cracks distributed in a certain direction (controlled by the internal structure of the crystal), and sometimes spun silk inclusions can be seen. 2. Fluorescence method can be used to distinguish natural rubies with obvious inclusions from synthetic rubies. Natural ruby and synthetic ruby both emit red fluorescence under long-wave ultraviolet lamp, but synthetic ruby is brighter and brighter. Natural rubies are "ten Hong Jiu cracks", and natural rubies without any flaws and cracks are extremely rare. Artificial rubies have the same color, few internal defects or crystal inclusions, and are clean and large. As a precious gem, natural rubies over 3 carats are very rare in the market. If you encounter a big ruby, you should pay attention, because the value of natural ruby is thousands of times higher than that of artificial ruby. A little carelessness will "take medicine." Natural ruby has a strong "dichroism". The so-called dichroism means that there are two colors of red and orange red from different directions. If there is only one color, it may be red spinel, garnet or red glass. Red spinel and natural ruby are very similar, and they are most easily confused, so be very careful. Ruby is one of the precious varieties in jewelry. Ruby is bright in color, and under the illumination of light source, it can reflect beautiful and moving six-ray starlight, commonly known as six lines, which is caused by the special crystal structure of ruby and its unique optical phenomenon. Ruby is transparent, translucent and opaque, and its colors are water red, pink, pigeon blood red and rose red. Natural ruby crystal is hexagonal or hexagonal bipyramid, so its color is generally cobweb concentric hexagon. "∧" or "-"shape may also appear after cutting. Put the gem into clear water, and its above color and shape will be clearly displayed. Ruby has a specific gravity of 3.99~4.02 and a hardness of 9. Ruby with large particles, pure texture, no cotton and no frills is very precious and rare. In this respect, rubies with large particles are usually fake. There are two kinds of fake rubies: the first is to pass off low-grade rubies as rubies, such as big rubies, ruby, garnet and so on. The way to distinguish between true and false rubies is to observe their colors. The red color of ruby is brilliant red, bright and dazzling, the red color of big ruby is deep red, the red color of ruby is pink, and the red color of garnet is purplish red. Moreover, all fake rubies do not have the unique color, shape and luster of rubies. The second is to be a ruby. Artificial ruby is very similar to natural ruby in terms of specific gravity, hardness and color. The method of identification is to put gems into water. The color of natural gems is "∧" or "-"or concentric hexagon, while the color of artificial rubies is cylinder or concentric circle. Intuitively, artificial rubies have uniform texture, no natural impurities, even and positive color, often large particles and lack naturalness. The synthesized ruby is uniform in color, with few internal defects, clean and large, with occasional arc growth lines; There are few inclusions in synthetic rubies, and occasionally a single round, teardrop-shaped bubble can be seen. The fluorescence of synthetic ruby is stronger than that of natural ruby, and it is transparent red under ultraviolet lamp. Natural ruby and synthetic ruby are processed in different directions in gemstone raw materials, so the display direction of dichroism is also different. Synthetic faceted rubies show dichroism in the table direction of gemstones, while natural faceted rubies only show dichroism when observed in the waist direction. The difference between ruby and red glass. Red glass is uniform in color, non-dichromatic, and contains only circular bubbles. In the fake glass gem, the linear flow structure of concentrated sugar when it is dissolved in water can be seen. Fakes of glass gems are all products made of molten glass, and there are traces of casting on the surface. Ruby is one of the precious varieties in jewelry. Ruby is bright in color, and under the illumination of light source, it can reflect beautiful and moving six-ray starlight, commonly known as six lines, which is caused by the special crystal structure of ruby and its unique optical phenomenon. Ruby is transparent, translucent and opaque, and its colors are aqua red, pink, pigeon blood red and rose red ... >>.

Question 2: How to identify the authenticity of rubies? The following is an ultra-simple identification method:

1. Put the gem in the water. Natural gemstones are "∧" or "-"or concentric hexagons, while artificial rubies are cylindrical or concentric circles.

2. Natural ruby has a strong "dichroism", that is, from different directions, it has two colors: red and orange. Moreover, the bold faceted ruby is dichromatic in the table direction of the gem, while the natural faceted ruby is dichromatic only when viewed in the waist direction.

3. Under the illumination of light source, it can reflect beautiful and moving six-ray starlight, commonly known as six lines, which is caused by the special crystal structure of ruby and its unique optical phenomenon.

There are some common sense of jewelry, maybe you will use it:

Carat: [1ct is equivalent to 200mg] is an important unit of measurement for jewelry. The higher the number of carats, the more expensive the price.

Cutting: The shape of a diamond after cutting and polishing is also important. Because the beauty and brilliance of a diamond can only be displayed by good and ideal cutting, the cutting technology is also an important factor to determine the value of a gem.

Color: Excellent gemstones are clear and transparent.

Transparency: Perfect gems are extremely rare, but of course, the fewer flaws, the better. The more flaws, the lower the relative transparency. In addition, defects are also distinguished by location, size, quantity and whether they are obvious or not.

Question 3: How to distinguish between true and false rubies should be easy to distinguish. With the present scientific and technological means, the treatment of precious stones has reached the point where human beings can't simply distinguish them with the naked eye. For example, coloring with real rubies is generally invisible to the naked eye. Even with a magnifying glass, it needs a very professional practitioner to identify it. There are mistakes, so let the people who come here do the professional things. It is wisest to go to a regular testing institution for re-inspection.

Question 4: The simplest way to distinguish between true and false rubies. Natural rubies have a strong "dichroism". The so-called dichroism means that from different directions, there are two shades of red and orange. If there is only one color, it may be red spinel, garnet or red glass. It is particularly important to note that red spinel and natural ruby are very similar, and they are the most easily confused, so we must be very careful. Let's first look at the difference between them and natural rubies.

The color of red spinel is very similar to ruby, but the red color of red spinel is relatively uniform, and no red spots or color groups can be seen. Seen from different directions, it has no dichroism. Fluorescence is weaker than ruby. When illuminated from the top with a flashlight in the dark, it becomes bright, but the edge or facet of the pavilion can be seen. The interior is relatively clean and clear, and there are no filiform rutile inclusions or bands with an angle of 60 degrees and 120 degrees in the ruby.

Question 5: How to tell the true and false rubies 1? Observation of color: Due to the harsh natural growth environment, natural rubies are often uneven in color, and soft, linear, banded or hexagonal growth zones can be seen inside; However, the synthesized ruby is extremely pure in color, high in saturation and unnatural in color.

2. Observe the luster: Gemstones have several different luster, while rubies generally have glass luster or strong glass luster. When we pick up a ruby, we can observe whether it is glass or strong glass luster, especially under strong light irradiation, the color will become more vivid and bright, with a unique silky flash in part or whole, and the luster is quite strong.

3. Observe dichroism: Natural rubies often have obvious dichroism, and the method of observing dichroism is also very simple. We picked up the gem and observed its color from different directions. Ruby can see the change of red, orange and red, and other imitations do not have this characteristic.

4. Observe rubies with cat's eye or starlight effect: Natural rubies with special optical effects are special rubies. When observing it, observe its eyeliner or star line. The lines of natural rubies are emitted from the depths, and the starlight is divergent and irregular, with bright spots in the middle; Synthetic ruby has lines floating on the surface, which are clear and obvious, with regular star lines and bright spots in the middle.

5. Observation and cutting: We generally observe that the processing of high-quality natural rubies and sapphires is very meticulous, and they are carefully polished during the processing, and the curved bottom surface is not polished; The processing of artificial rubies and sapphires is generally rough, with grinding marks and trembling marks-fire marks caused by rapid grinding, and the curved bottom surface is often polished.

Question 6: How to identify rubies bought in Vietnam? If you go to the mall to sell it, it must be a little higher than the original price, and then a great god will help you solve it.

Question 7: Identification of true and false ruby jewelry The identification of rubies requires professional tools, such as cubic zirconia or long-wave ultraviolet identification.

Different from red glass

Red glass is isotropic and has no polychromatic properties.

Zoom in and check that bubbles and vortex lines can be seen in the red glass.

It has a typical shell-like fracture with obvious ridgeline.

Glass has a low density, so it feels light.

According to the weight, the specific gravity of ruby is 3.9, which is heavier than ordinary synthetic materials. Looking at the contents with a magnifying glass is not as clean as synthetic materials, and it is really red when irradiated with ultraviolet fluorescent lamps.

Question 8: How to distinguish between true and false ruby capacitors For the convenience of everyone, the classification is as follows.

1. From the appearance, the real ruby looks smooth and dull. In sunny conditions, its reflectivity is high.

2. judging from the product letter logo, Rubicon does type, while the fake is Rukycon, and the typing is very unclear. Pay attention to the letter in the middle, which is B instead of K.

3. From the series, Rubycon is also the kind of high imitation technology. The only difference is that the original import of YK series is 85℃, while the counterfeit product of YK series is 105℃. This requires in-depth research on ruby aluminum electrolytic capacitor.

4. From the price point of view, the price of general imitation is very attractive, 2~3 times cheaper than real ruby, basically the price of domestic capacitor (commonly known as sapphire). Of course, some unscrupulous vendors can confuse the fake with the real, and the price can of course be the same as the real one, so we must pay more attention when choosing. Don't cause unnecessary losses because of our momentary greed.

Question 9: How to tell whether a ruby is true or false? You can't tell the difference in water, just look at one point. Water has a simple way to tell whether more than 2000 rubies are natural or synthetic.