A New Book on Jadeite Jade

Jadeite Jade, A Stone and A Culture by Ou Yang, Chiu Mei, will enlighten everyone from the novice to the expert. It explains jadeite, its origins, trade terminology, the importance of jadeite varieties, and every enhancement (including acid and wax) and includes 200 beautiful color images. For quality-grading jadeite, Ou Yang uses the "4C2T1V" principle. The "four Cs" are Color, Cut, Clarity, and Cracks. The "two Ts" are Transparency and Texture, and the "V" stands for Volume. In order of importance, they are listed as Color, Transparency, Texture, Cut, Clarity, Cracks, and Volume. Color is divided into four key evaluating factors: purity, intensity (saturation), brightness, and evenness. As with other colored gems, the more pure the hue, the more important the gem. Green is more valued than bluish-green. In order of importance, the six categories of purity are: green, slightly yello

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