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earrings wholesale china How to conduct economic evaluation on cat’s eye gems?

Diposting di oleh Kingjy

Since more than 20 kinds of gem minerals with cat’s eye effect have been discovered in the world, and their beauty and value are far less than the golden-green opal, some people call golden-green opal “true opal” and refer to the other All kinds of gems with cat’s eye effect are called “false opals”. Namun, when specifically calling a certain cat’s eye gemstone with cat’s eye effect, just prefix the name with the name of the mineral and add “opal” instead of calling it “fake opal” in general.

The economic evaluation of cat’s eye gemstones mainly has the following two aspects, but this is only for golden-green opal, dan lainnya “fake opals” are only for reference or not applicable. This is because the cat’s eye of low-level wood amorphite (each ring face is only worth a few yuan to tens of yuan), although there is also a cat’s eye effect, it is impossible to show “living light”.

(1) From the color point of view: sunflower yellow is the best color for opal. A high-quality opal ring noodle with this color and liveness in Sri Lanka, weighing more than 5ct, can be worth up to 10,000 US dollars per carat; Yellow-green comes next; white-yellow and white-green have lower value; the worst is gray opal.

(2) From the shape of the line: For the finest golden-green opal, the bright line of the cat’s eye should be located in the center of the gem arc, and it should be vertical, strong, narrow and clear, and show vivid color.

In short, in addition to paying attention to color, opals are evaluated as genuine products with light bands centered and vertical, and distinguished by the strength of the flash.

 

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