Tourmaline can be divided into four types according to its color: blue tourmaline, red tourmaline, green tourmaline, multicolor tourmaline. If in these four colors, which color of tourmaline is the highest value, internationally, it is divided according to the depth of color concentration. The thicker it is, the more expensive it is. Blue tourmaline: a general term for light blue to deep blue tourmaline. Blue tourmaline is now the most valuable color in the tourmaline because it is rare. Red tourmaline: the general term for pink to red tourmaline. Red is the best of the tourmaline with purple and rose red, and it is called the red tourmaline. In China, there is the name of “baby faceâ€. However, the natural world produces more brown, maroon, and deep red, and the color tone changes greatly. Green tourmaline: a general term for yellow-green to dark green and blue-green, brown-colored tourmaline. Multicolor tourmaline: Since the tourmaline ribbon is very developed, red and green dichroic ribbons or trichromatic ribbons often appear on a crystal; the ribbon can also form a color circle from the inside to the outside according to the Z axis, and the inner infrared green It is called "Watermelon Tourmaline". Now let us judge the color of the tourmaline from the value of each color tourmaline. The value of blue tourmaline In recent years, at home and abroad auctions, there are fewer opportunities for the appearance of tourmaline collections, and the transaction rate of common varieties is not very high, but those with good texture and fine work are still the objects of choice for collectors and investors. . At present, the price of gem-quality tourmaline in the international market is generally 20,000 US dollars a carat, the price of domestic general tourmaline is more than 200 yuan per gram, and the good quality is more than 2000 yuan per gram, far higher than gold. price. At the Guardian Auction in November 2008, a rare blue-blue 玺 è bat pattern appeared in a light sky blue, crystal clear, smooth and bright. The lottery is engraved on the dragon button, and its side is carved with bats, Xiangyun, Ganoderma lucidum, Xiaolong and other objects. It is quite fresh and lovely, and it is worthy of the price. It is estimated to be 15,000-2.5 million yuan, and the result is 44,000 yuan. At an auction in China's Guardian in June last year, a celestial tourmaline button with a length of 3.6cm, a width of 2.5cm and a height of 4.5cm, because of the azure color tourmaline, the color is gratifying, bright and moist. The sculpt of the double-clawed Ganoderma lucidum button, the double èž èž ,, the mouth of the Ganoderma lucidum, vivid image. The printed surface is elliptical and can't be engraved. The lot was sold at a rate of 176,000 yuan, which is about 10 times higher than the auction. As a result, the potential of the tourmaline boutique is impressive. The value of red tourmaline The red, green and blue tourmalines are among the most popular in the world, and the price of red tourmaline is the highest among the three types of tourmalines. The red tourmaline has a lower level of clarity in the tourmaline family, which is very similar to emerald. Pure red red tourmaline gemstones are always difficult to see, often with many cracks and inclusions. When these small flaws do not affect the color and light refraction of the gemstone, it is generally acceptable for its high price. But if these connotations make the gem's clarity drop and the color dark, you have to reconsider the cost of the purchase. When the tourmaline is close to bright red, it will be very similar to the color of ruby. There is a very simple way to distinguish them: the fire reflected inside the ruby ​​is bright red, and the tourmaline is red with pink tones. The value of green tourmaline Some green tourmalines are distinguished by their bright colors and typical small size. They are produced by the province of ParaÃba, Brazil. The bright blue-green color produced by the copper elements is called the neon green dragonfly. Compared with the tourmaline, its color is saturated and the color tone is lighter. More than one carat of green and blue-green Paraiba tourmaline is rare and is the most valuable green tourmaline on the market. A similar blue-green tourmaline that is colored by copper impurities is also produced in Nigeria. From the above we can know that if the four colors of the tourmaline, the highest value of the collection is the blue tourmaline, because of its rarity; and in the market, the highest price is the number of red tourmaline; and for the green In terms of tourmaline, the market price of tourmaline above one carat is the highest, so the biggest space for appreciation is blue tourmaline, but if you want to catch up with the price of red tourmaline, it will take time to brew. Duck Down Pillows,White Duck Down Pillow,Down Pillow Inserts,Feather Down Pillow Insert HANGZHOU YINTEX CO.,LTD , https://www.psptex.com