Is the ruby ​​that has been "micro-plastic" not worth buying?
Ruby has always been favored by gem lovers. Unlike the "reverse spine" that was talked about yesterday, Ruby has always been "a famous name" and is one of the world's top five precious stones. Natural rubies have more or less imperfections, lack of color, and insufficient clarity. These shortcomings can greatly affect the aesthetics of rubies. Therefore, humans have played her ingenuity and made “micro-shaping†on rubies. 1. What is the “micro-shaping†of gemstones? The “micro-shaping†of ruby ​​is also called optimization processing, which refers to all the improvement methods (except basic cutting and polishing) that make the appearance and performance of jewelry more beautiful and valuable. Optimization and processing should actually be discussed separately. Optimization refers to the excavation of the potential beauty of ruby ​​in a way that is accepted by people. Dealing with it is also making the ruby ​​more beautiful, but these methods have not been accepted by people, so it is called processing. 2, "micro-finished" natural is called optimization! The heat treatment of ruby, an optimized method that has been used for a long time. It is to heat and oxidize these natural rubies, the temperature is between 1600 °C and 1700 °C, so that the blue-green divalent iron ions in the gemstone are oxidized to red ferric ions, thereby filtering out the blue in the gemstone. Hue, so the ruby ​​red will be more intense. There is also a heat treatment in which the gemstone is heated for a few months in a reducing atmosphere, so that the filamentary inclusions in the gem are melted, forming a solid solution with the gemstone, and then rapidly cooling the ruby, thus affecting the transparency of the ruby. The silky inclusions are removed and the ruby ​​color is more transparent. The heat treated ruby ​​is called "burning ruby". ▲ There is burning ruby The heat treatment of rubies has been recognized and allowed by the jewelry industry, and the national jewellery jade name standard also clearly defines qualitative heat treatment to be optimized. Heat-treated rubies are still natural rubies, and almost 80% of the rubies on the market are heat-treated. This is a accepted method. It is not fraudulent, but the price of burning is naturally lower than that of natural non-burning rubies. ▲ no burning ruby 3, "micro-finished" excessive processing becomes a deal! The above mentioned the "fine" successful ruby ​​optimization method, and some changes to the "micro-finished" excessively unrecognized, can only be called the processing method. Let's talk about the four failed "fine" methods. 1) Oil immersion treatment: As the name implies, the oil immersion treatment is to soak the ruby ​​in the red oil and let the pigment molecules slowly enter the ruby ​​interior. This is a long molecular motion process. The processed ruby ​​color has poor stability and is difficult to last. Not recognized by people. 2) Dyeing treatment: This is a relatively long-term treatment method. The quenched ruby ​​is placed in a dye that is not faded, and the surface is colored by low-temperature heating. This treatment method is unstable in color and is not recognized. 3) Diffusion treatment: the chromium element is diffused by chemical reaction to the surface of the gemstone to be treated, so that the color of the gemstone will be more red, and the ruby ​​treated in this way is very stable and natural, but only the gem surface energy It is processed, so the color is likely to be worn away during the gem polishing process, so this method is not recognized, and it must be marked with diffusion treatment when sold. 4) Filling treatment: This is done under vacuum conditions, the filled material is heated and melted into a liquid or glass state, and sometimes some coloring agent is added, immersed in the gap of the ruby, thus the treated ruby ​​color and The clarity has improved and the effect is very stable, but it is still not accepted by people. Identify small tips: The color of the immersed oil gemstone is unstable. When you look at it in the water, you will find that the color of the gemstone is not uniform. If you wear it for a long time, the color will become lighter. The dyed ruby ​​looks under the high power microscope and will see the tiny color material distributed along the gap, which is incompatible with the original color of the gemstone. Under the ultraviolet light, there is no red fluorescence of the ruby, but it will be seen in the small crack. To the yellow fluorescence. The magnified magnified observation of the ruby ​​will reveal that its surface and internal color are inconsistent, and the color that is sent to the polishing will become lighter. The filled gemstone can observe the traces and bubbles left by the movement of the filler under the microscope. Under the ultraviolet irradiation, the ruby ​​part will be red-fluorescent, and the crack will be yellow fluorescent. When buying ruby, you must choose a natural ruby ​​with certificate certification to avoid inadvertently buying processed rubies. 4. Is the value of “micro-plastic†jewelry not worth buying? The two types of "micro-shaping" methods of ruby ​​mentioned above, do you see the difference? The optimization of ruby ​​is not to add other substances, it is to create conditions for the ruby ​​itself to change, so that its quality is better, equivalent to internal repair; and the treatment is to increase the foreign object on the ruby, like oil immersion , filling, etc., ruby ​​is no longer a pure ruby, naturally can not be sold as a natural ruby. Therefore, the optimized ruby ​​ruby ​​is still worth buying. The natural non-burning ruby ​​is expensive and rare, and the natural ruby ​​that is burned is relatively cheaper. The beauty is not discounted. You can do it by yourself and choose the right ruby. Oh!
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