Cat’s eye (Chrysoberyl cat’s eye) gemstone selection is indeed very important and belongs to the practical technology range of jewelry. A certain point of view is that:’Pay attention to the selection of materials during gem processing. In order to show the best cat-eye effect after processing, it is necessary to choose materials with inclusions as slender as silk, dense, and parallel arranged. ‘In fact, this statement is taken for granted, far from the reality of jewelry.
There are three improprieties:
First, regarding the’material selection during gem processing’. The “material selection” of cat’s eye gemstones is indeed very important. However, the “material selection” of the cat’s eye gemstones does not actually belong to the “gem processing process” but the process of buying rough stones. If it comes to the’material selection’ of the cat’s eye only during the processing’, I am afraid it will be too late!
The second is about’ the inclusions in between must be chosen as slender as silk and arranged densely and in parallel’. Theoretically speaking, the inclusions of cat’s eye gemstones are indeed’slender like silk, densely arranged in parallel’. The crux of the problem lies in the fact that the inclusions of the cat’s eye gemstones are actually so small that it is hard to see with human eyes. So, how to choose if you don’t see the “inclusion”?
Third, whether the’light’ of the cat’s eye gemstone is bright and clear is one of the conditions for’material selection’, but it is not the whole of’material selection’. There are more important “material selection” criteria, such as the “light position” and the “rough stone shape” of the cat’s eye gemstone. If the position of the light is wrong, or the shape of the rough stone is not good, no matter how bright and clear the “light” of the cat’s eye is, it is meaningless.
One is the choice of transparency. The degree of transparency of the cat’s eye directly explains the density of inclusions in the gemstone. Therefore, transparency is one of the conditions for Maoyan’s material selection. Cat’s eye gemstones are usually translucent, and translucency that is deep and invisible is best. When observing transparency, we should pay attention to the interference or illusion caused by the directionality of the’le light’.
Second, Le Guang’s choice. On the cat’s eye rough stone, the reflected light of the cat’s eye does not have the shape of a line’. This kind of reflection without a specific shape is called’le light’. Although I can’t see how the “inclusions” in the rough cat’s eye are, you can feel whether the “inclusions” are dense or not through the strength of the “light”. Therefore, performance of’Leguang’ is one of the important conditions for Maoyan’s selection of materials.
Third, the choice of color. The color of the cat’s eye gemstones is mainly a variety of colors with yellow’ as the main hue, such as sunflower yellow, honey-yellow, wine yellow, brown-yellow, gray-yellow, yellow-green, yellow-brown, gray-green, brown-black, and so on. The bright colors of’sunflower yellow’ and’honey yellow’ are the best, and the color with gray’ is the worst.
Fourth, the choice of rough shape. Under the premise that the position and direction of’Leguang’ is roughly determined, the shape of the rough cat’s eye is the most important selection criterion in the’material selection’ of the cat’s eye. The opposite can also be said: in the cat’s eye rough stone, the direction and position of the cat’s eye light are the most important selection criteria. Because this is related to the size, weight, and yield of the finished cat’s eye gemstone. To be precise: it is related to the value of the cat’s eye gems.