(1) 色. The beeswax yellow is the best, followed by green, yellow-green, yellow-brown, gray-green and gray-yellow again. When the light illuminates the gemstone from the side, half of the cat’s eye is its body color, and the half becomes other colors, which is also a good performance. As for cat eyeliner, the brighter and more flexible the better; if there are two or three eyeliners, and the eyeliner will open and close when turning the gems, it is the best; if the eyeliner is not obvious, the middle is broken, and the position movement is not obvious, it is second. 製品.
(2) Clarity and transparency. The clarity and transparency of golden emerald gemstones are very good, and most of the gemstones have no obvious visible inclusions. しかし, the clarity and transparency of a cat’s eye cannot be measured by the standard of a transparent gem. If the cat’s eye is too transparent, its eyeliner must be poor. したがって, the transparency and clarity of the cat’s eye should be treated dialectically. 一方では, I hope it will be cleaner. Be transparent; 一方で, you can’t sacrifice the cat-eye effect for being too transparent. 一般的に言えば, cat eyes produced in Sri Lanka are of the best quality, but their transparency is often not high. Cat eyes produced in Brazil have better transparency and better eyeliner, which is difficult to see in other producing areas.
(3) Cut work. The cut style of a cat’s eye is different from a faceted gem. It must be cut into a curved gem, and the long axis of the gem must be perpendicular to the direction of the inner filamentous inclusion to produce a good eyeliner. 加えて, the height of the arc also affects the eyeliner. 一般的に言えば, the higher the camber, the thinner and brighter the eyeliner; the lower the camber, the thicker and lighter the eyeliner. But the higher is not the better, but also the beauty of the shape and the restriction of the natural shape of the gem material. 加えて, the bottom of gems is often left very thick, 実際には, there is no need to consider the beauty of the appearance and the limitations of the natural shape of the gem materials. 加えて, the bottom of the gem is often left very thick, which is actually unnecessary. This will not only affect the setting, but also increase the price due to the increased thickness and affect sales.
The cleaning and maintenance requirements of cat eyes should be noted: do not wear or store in high temperature environments to avoid bumps; it is best to store them separately to prevent bumps and damage to other things or jewelry.