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wholesale crown jewelry Tips for buying golden emeralds

Опубликовано в от Король

The second is to identify authenticity. There are no synthetic gold emeralds on the market. Most of the imitations are made of other materials, такой как: glass or synthetic corundum imitations. The more common imitations of alexandrite are-a kind of red garnet plus The artificial interlayer gemstones bonded to the bottom of the glass, there is also a synthetic corundum (Synthetic Corundum), the common imitations are lighter green and cherry red, and these two imitations are easy to pass the refractive index or specific gravity of the gem. It is identified by the test, so as long as it is a cat’s eye or alexandrite with a certificate of appraisal, you will not buy imitations.

Distinguish from beryl: желтый, yellow-green and yellow-brown chrysoberyl and similar beryl gemstones. If you carefully observe the luster of the gemstone, you will find that the luster of chrysoberyl is higher than that of beryl, and the proportion of chrysoberyl is higher. It will float when placed in a diiodomethane solution with a specific gravity of 3.32.

Judgment criteria for cat eyes: There are five judgment criteria for the purchase of cat eyes: “straight, thin, bright, середина, and lively.” Simply put, the eyeliner should be straight, the thinner the better, the brightness should be sufficient, the center must be centered, and the look must be It is flexible and moves with the position of the light source. The best color is the so-called milk honey color. There are not many cat’s eye golden emeralds that reach this level, and the price is quite high. This level of cat eye is no longer available in general jewelry stores. See more.

Discoloration: The more obvious the discoloration of alexandrite, the higher the green and red tones, because the price is also higher.

 

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