Notícias de jóias

prata de lei 925 wholesale Processing and imitation of corundum (papel 2)

Postado em por Kingjy

This kind of treatment is most conducive to the production of the pink-orange color of Padparadscha. A large number of Padparadscha corundum has appeared on the market in the past two or three years, and even many appraisal agencies have issued many appraisals of natural Padparadscha corundum, causing an uproar in the gem market. , Consumers are also panic.

After research and analysis, it is found that this treatment is to add Chrysoberyl and the corundum to be heated together. The beryllium (Be) element contained in the Chrysoprase changes the color of the corundum, presenting a beautiful Padparadscha pink orange or bright red ruby. . The content of beryllium in this deep diffusion treated corundum gradually increases from the inside to the surface, which means that the closer to the surface of the gem, the higher the concentration of beryllium, but this sign can only be measured with more advanced and sensitive gem analysis instruments. Sometimes Even appraisers are difficult to appraise, let alone non-professional trained consumers.

Assembled Ruby & Safira

The upper part is a layer of transparent natural corundum, and the bottom pavilion is synthetic ruby ​​or sapphire. Observing from the top of the gem, you can see the natural inclusions, which makes people mistakenly think it is natural ruby ​​or sapphire. Na verdade, most of them are synthetic. Strictly speaking, the interlayer red sapphire should be regarded as an artificial gem. From the side of the gemstone, you can observe the bonding wires of the upper and lower parts. If you observe carefully with a magnifying glass, you can find that the gemstone contains both natural and synthetic inclusions.

 

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