danish pilgrim jewelry wholesale cost
1 thought on “danish pilgrim jewelry wholesale cost Briefly describe the study purpose of participating in the course of "Jewelry Appreciation", what is the significance of mastering the knowledge of jewelry”
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popular jewelry wholesale As people are pursuing more and more jewelry, people have to know about jewelry appraisal skills. Some people say that using the Dao's color filter to take a piece of green jadeite. If it transforms into red, it can indicate that this jadeite is dyed, and the color does not change color. This statement is very mechanical and the understanding of people. We know that the Dotan filter is a color filter film, which only allows red and orange light to pass through. The fuel used for dyed emeralds is generally contained in chromium salt. When it is very high, it will emit red light, and it is red under the Dao's color filter mirror. However, if the color of the dye is not dark, the concentration of chromium salt is not high, and it is reddish under the Dao's color filter mirror, which is not easy to observe. In addition, natural green emeralds sometimes contain a small amount of red light, so it is used to observe the green emerald with the Dao's filter to analyze it carefully. So what is the difference between the natural green of emerald and dyed? We already know the reason for dyeing emeralds, and the reason why natural jadeite is green, white, and purple because the grains that make up the jadeite are green, white, and purple. So when we look at the color of a natural jadeite, its color and crystal cannot be divided into boundaries, and the original crystals, its original crystal is not color, and the dyeing agent that enters the emerald is along the crystal. The gap between the granularity or some fine cracks is infiltrated, so the color and crystal will have obvious divisions. Diamond appraisal: Because diamonds are noble and luxurious jewelry, currently the market is used in the market to replace or claim that diamonds are not common in diamonds in the market. Similar, it is the best substitute for diamonds. The appraisal method is that because the vermiculite has polarization and a large double refractive index, when the vermiculite edge after 10 times the large mirror is used to observe the processing of the processing, it can be seen from its top surface. Shadow, and diamonds have no phenomenon. ② Glass: The discount rate of glass is very low, and there is no flashing color light of diamonds; especially sinking into the water, the glass products are glory at all, and immediately expose the horse's feet. ③ Soviet diamonds: Cube oxidation, the earliest was successfully developed by the Soviets, hence the name. Soviet diamonds are artificial compounds, but they are very close to natural diamonds in terms of scattered and folding. They also have the seductive appearance of "fire". But its hardness (8.5) can be distinguished from each other. And thermal conductivity is much lower than that of diamonds, which can be identified by the "hot guide" and accurately distinguish it. ④ Crystal: Although the crystal is a natural mineral transparent crystal, it looks like diamonds after processing, but the colorful light of diamonds lacks diamonds. The appraisal of ruby: Natural gem "Ten Red and Nine Cracks", natural rubies with no flaws and cracks are extremely rare. The color of artificial ruby is consistent, with less internal defects or crystalline wraps, clean, and large blocks. As a precious gem, natural rubies with more than 3 carats on the market are very rare. If you encounter a larger ruby, you must attract attention, because natural ruby is thousands of times higher than artificial ruby. "Take medicine". Natural ruby has a strong "two -color". The so -called two -color, that is, there are two colors of red and orange -red in different directions. If there is only one color, it may be red spinel, garnet or red glass Wait. Red spinels are very similar to natural ruby. They are the most confused, so they must be particularly cautious. Lama identification: The color of natural sapphire is often uneven, and most of them have straight growth patterns. The color of the artificial sapphire is the same, and its growth pattern is an arc -shaped belt. Often, there are bread dandruff or beaded bubbles in the body. Natural sapphire also has obvious duality. From one direction, it is blue, and from the other direction, it is blue -green. The color of other gems is different from natural sapphire, which can be distinguished. In addition, the easiest method can be measured by hardness. Natural sapphires can be carved on the yellow jade, and other blue gems can be difficult to engrave marks on the yellow jade. Sometimes you can solve some problems. Tourmaline's appraisal: Tourmaline is a medium -grade gem, but because of peach red and fresh blue tourmaline, it is also expensive, so there are also imitations. There are two types of common imitation products, one for colorless tourmaline artificial color; the other is processed by red glass. The method of identification is that true tourmaline often has obvious duality, which can be seen in double shadows; tube wraps or cotton floccope can be seen in the body. These characteristics are not possessing by imitation. The tourmaline dyed in the workers. Because of the stagnation of the color, it lacks the "treasure light" of natural tourmaline, so it is not difficult to identify. Crystal identification: Natural crystal is clear and transparent, often contains cloud -like, star -like or flocculous gas liquid bodies, and often has slight cracks. In addition, natural crystals are polarized. It can be seen that the phenomenon of dual crystal, such as crystal sphere, from top to bottom, meet with dual phenomena. Artificial synthetic crystal or glass products are pure in the body without cracks, and there are often small bubbles inside. The sphere looks from top to bottom, and the double shadow of the line below cannot be seen. With your hands, you can feel that the proportion of the synthetic crystal is greater than the natural crystal; the natural crystal has a cold feeling, and the glass has a temperature. Appraisal of pearls: Pearls are divided into natural pearls and breeding pearls, and farming pearls are divided into seawater and freshwater beads. Natural pearls have small output and expensive prices; and farming pearls can be produced in large quantities, so the price is much lower. The main difference between the two is that there is no nuclear in the interior of natural pearls and breeding pearls. The core of natural pearls is often only some sand or parasites, and there are even no nucleus. The core of breeding pearls is a larger ballpoint of artificially made, so the wrap layer outside is thin. It is manifested on the surface, and natural pearls are randomly rolled because of their growth environment, and foreign bodies in the nuclear are rarely rolled, and their shapes are poor. The nucleus of the breeding pearl is rounded, so the roundness is better after becoming beads. Due to the long period of growth, the natural pearl has a delicate texture, thick layers, smooth epidermis, rarely "bubbles", and more transparent. The breeding pearl has a short sound when it is beads, so the bead layer is thin, the texture is rough, the gloss is "wax", and there are often some uneven "small bubbles" on the surface, which is also poor. If it is a perforated pearl, carefully observe the holes with a magnifying glass. If you cultivate pearls, you can generally see a brown line in the pearl. This is the dividing line between the kernels and the later pearl layer. At present, imitation pearls often appear in the market, which are generally made of fish scales or silver powder with glass beads. The gloss is obviously different from the true pearl, and the weight is different. Those with a little experience can be identified. If there is a nail or a knife, it will immediately expose the true face of Lushan.