翡翠戒面质量分级初探

A TENTATIVE DISCUSSION ABOUT THE QUALITY CLASSIFICATION OF FEICUI RING FACE

翡翠质量分级是进行价格评估的基础。因其颜色及其他条件变化无穷，很难制定一个相对统一的质量分级标准。翡翠戒面是经过精心选料加工而成的成品，与翡翠毛料相比进行质量分级要容易得多。颜色是全面进行翡翠戒面质量分级的第一因素。结构（质地）与透明度对翡翠戒面质量分级及评价两者具有一致性。结构、种、透明度、净度，它们对翡翠戒面质量分级，一般来说，也具有一致性。明显的横切裂纹是严重影响翡翠戒面质量，降低其质量档次和级别的重要因素．但一般的情况来说，在翡翠戒面加工过程中尽量避免上述情况存在，因此，明显的横切裂纹可不作为制定翡翠戒面质量分级的因素考虑。加工抛光好坏与翡翠质地好坏，有相关的一致性。颜色、结构（质地）和透明度是影响翡翠戒面质量分级的三大要素，三者质量均好，翡翠戒面质量必然好。综合考虑上述因素之间的相互关系及权重关系，将翡翠戒面质量分级，划分为低、中、高三个档次，五个级别。

The quality cassification of feicui (jadaite gem) is the base of its price evaluation. Because of the very various of color and other conditions, it is difficult to set up a relatively unified criterion of quality classification. As a feicui ring face is the product by carefully selecting material and processing, its quality classification will be more easier than that of feicul raw materials. The color of feicui ring face is the first factor of its quality classification. Texture and transparence are consistent in the quality classification and evaluation of feicui ring face.Generally, texture, species, transparence, purity are consistent in the quality classification of feicui ring face. Any clear transverse fissure is the main factor seriously affecting and de creasing the quality of feicui ring face. In common case, however, people will do their best to avoid the fissure of ring face in the processing. Therefore, we don't consider the clear transverse fissure to be a factor of the quality classification of feicui ring face. The quality of feicui is related to the polishing process- And the 3 main factors in the quality classification of feicui ring face are color, texture and transparence. The quality of feicul ring face certainly will be very high if the 3 main factors are good. Comprehensively considering the relation and weight of the factors mentioned above, we have set up low, medium, high 3 grades snd 5 classeb for the quality classification of feicui ring face