According to legend, there is a stone that travels through the rainbow along the journey from the center of the earth to the sun. On the way, it acquires the various colors contained in the world. It is known as the “Rainbow that falls into the worldâ€. It is the birthstone of October. - Tourmaline.
Tourmaline is also known as tourmaline. Legend has it that the origin of tourmaline was in 1703. In Amsterdam, the Netherlands, several children played with the stones brought back by the Dutch voyagers, and found that these stones, besides the strange colors appearing under the sun, were even more surprised that these stones could attract or Rejecting the power of light objects such as dust or grass clippings, until 1768, the famous Swedish scientist Linnes discovered that the tourmaline is also piezoelectric and pyroelectric, which is the origin of the name of tourmaline.
Like many gems, tourmaline is popular, and after wearing it, the gloss will be better, and the crystal will be more transparent. Generally, it will change more obviously in a short period of time, so the newly purchased tourmaline of the same grade does not wear a section. Beautiful after time. The tourmaline not only has a high value, but also has the meaning of “evil spirits, must have happy events†in the homophonic sounds. As the birthstone in October, it is more sheltering for those born in October.
There are many colors of tourmalines, which are mainly divided into red tourmaline, green tourmaline, yellow tourmaline, blue tourmaline and watermelon tourmaline. Red tourmaline is the highest value among tourmalines.
Due to the rich color and color, the tourmaline has won a lot of favor. In ancient times, the official pearls were made by tourmalines. In the palaces of the Qing Dynasty, there were more tourmalines. The Empress Dowager Cixi also loved it, which infused the royal family into the royal family.
Five quality indicators for tourmaline:
1, color
The international jewellery industry basically divides the commercial variety according to the color of the tourmaline. The more the color, the higher the value. Red tourmalines are best in purple and rose red. Color is the key to dividing the tourmaline level: the more pure, intense, and better the color. Generally, the red tourmaline can be divided into five levels: deep red, red, medium red, light red, and light red.
2, transparency
This is the primary condition for quality tourmaline and an important criterion for reflecting the value of tourmaline. Some red tourmalines in the market, the price of the pellets is very cheap, because the transparency is not up to the gem level.
3, cut
The cut determines the fire of the tourmaline, and also determines the value of the tourmaline to some extent. The tourmaline classification of tourmaline can be used as a reference for diamond standards.
4, clarity
The tourmaline contains a lot of impurities and ice cracks. Based on the naked eye, the purity of tourmaline can be divided into extremely difficult to see, difficult to see, visible, easy to see, and easy to see. Among them, the first and second grades are high quality gemstones. The high clarity of the tourmaline is extremely rare, and the high quality of the tourmaline clarity can greatly enhance the value of the tourmaline.
5, quality
According to the quality, the tourmaline grade is divided into 1-2 carats, 3-5 carats, 5-10 carats, and its value is multiplied by 5 carats. Among them, the tourmaline of more than 15 carats is the most popular and the most collectible.
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