1, transparency. Refers to the degree to which a gem allows visible light to pass through. In the naked eye identification of rubies, transparency is generally divided into five grades: transparent, sub-transparent, translucent, sub-translucent and opaque. Transparent rubies are the most beautiful and naturally the most expensive. This is the same as jade "the water is one point higher and the price is ten times higher".
2. color. This refers to the color of precious stones. Ruby red requires pure hair color, no evil color, or other colors, full color. Among them, "pigeon blood red" is the most collectible. However, the production of pigeon blood ruby is extremely rare. Under pigeon blood red, bright red ruby is the best, followed by rose red and pink. It should be noted that the light source will have a great influence on the color of ruby, so don't trust the lighting of jewelry store too much. If appropriate, put the ruby in normal light and observe whether its color is pure.
3. clarity. Ruby is a kind of gem with relatively many impurities, and most rubies have cracks, flaws and cracks. But it is precisely because of many impurities and high purity that rubies are more precious. The inclusion of ruby does not necessarily absolutely affect its quality and price, but mainly depends on the position of these defects in the gem and whether it affects the eye effect of the gem. On the contrary, inclusions can also be considered as the natural characteristics of rubies.
? 4. Stop working. Ruby cutting is very important. Only exquisite and ingenious cutting can present the most dazzling and charming light of the "king of gems" ruby to the world. The standard cutting method of ruby is different from that of diamond. The processor will not cut according to the geometric design in order to achieve the maximum brilliant light, but will emphasize the aesthetic feeling of restoring the ruby itself. A well-cut ruby reflects light evenly on the whole surface, and the light interacts with each other, making it warm, rich and dynamic.
5. Carat weight. Ruby, like diamond, has the same quality, and the higher the weight, the higher the price, especially the high-quality ruby above 1 carat. Anything over 3 carats is rare, let alone over 5 carats. There is a premium called carat premium. Every carat is a price watershed, and the gap between them is huge.
The price of ruby mainly depends on the above five points, but the most important thing is practice. On paper, you will feel shallow, so you have to do it.
The picture in this article comes from the dancers on designer spar.