Today, I have a heart and blood, I started to consider this small programmer's future bride should wear what diamond ring. I went to Lao Fengxiang, Zhou Dafu, She Ruiline, Zhou Sheng Sheng, I saw me. Thinking of the network, there is nothing information on Chinese, found an English website http://www.original-diamonds.com/ Explain above. There are five main evaluation criteria for diamonds, which is based on these five standards to determine the price of diamonds. 1, size. The size is 1 gram = 0.2 grams represented by carat. 2, cutting process. The cutting process is approximately 1) Heart and sword cutting, which belongs to the perfect level, and the words of a lot of praise have been used in the original text. About less than 1% of diamonds can be cut into this level, and it is understood that it is indeed rare. 2) The United States is perfect, this level is characterized by cutting strictly in accordance with the mathematical ratio. It is basically reflected so light, of course, "sparkling", about 16% of diamonds can successfully cut into this level. 3) International transaction has a good level of cutting, approximately 24% of diamonds can meet this standard. 4) The average level of the United States is cut, approximately 38% of diamonds meet this standard. 5) Cut below the average, not the above level is it. Cutting is very important, you have to know a primary diamond, if you want to cut, you have to cut off more angles, of course, the weight is lost. 3, pureness. The pureness is divided into ten, from high to low: IF, VVS1, VVS2, VS1, VS2, Si1, Si2, Si3, I1, I2.4, color. The color is divided into ten, from high to low: D, E, F, G, H, I, J, K, L, M. 5, shape. The shape is approximately more complicated. It is recommended to see the above website, with a detailed graphic introduction. According to the price from the low to low, approximately the circle, square, oval, heart shape, olive, triangle, water drops, etc. I will give some prices according to these standards, give you a reference. Note that the general size occupies 50%, the cutting process accounts for 20%, and the color and pureness each account for 15%. 0.33 carats, the average cut level, the color H, the purity VS1, the circle is approximately $ 914 0.25 carat, the average cut level, the color h, the purity VS1, the circle is about $ 488 0.25 carat, the average cutting level, color h, pureness VS1, the top equipage is about $ 364 of 0.33 carats, with average of 1.00 carats, the color h, the pureness VS1, the circle is approximately $ 790 1.00 carat, the average cut level, the color h, the purity VS1, the circle is approximately 5,474 US $ 1.00 carat, The average cut level, the color I, the pureness Si1, circular approximately $ 3899 0.25 carat, the average cut level, the color I, the purity Si1, the circle is approximately $ 286 to see the price of domestic small diamonds. I only list the price of 0.3 carat below.
