With the collection of jade and Hetian jade, the color semi-precious stones such as crystal and tourmaline also quietly rise in price. The reporter learned from the Xudong Antique City that this year's upscale tourmaline has risen by 30%, and the prices of watermelon tourmaline and other high-end varieties have reached 3,000 yuan/carat.

“Before the tourmaline jewelry was sold on a piece-by-piece basis, and now a good tourmaline is sold by g.” The merchant Mr. Dai told the reporter that a string of 60 grams of high-grade tourmaline bracelets, three or four thousand dollars, was made two years ago; now it is 180 yuan. Kelai sells it for a total of 10,000 yuan. "In the first half of this year, the price of the bracelet was 130 yuan per gram, which rose by 3,000 yuan in several months."

“The crystals of all kinds of high-grade materials are appreciated, among which tourmaline, titanium crystals and hair crystals have the fastest appreciation.” Mr. Dai believes that the collection value of tourmalines has gradually been recognized by people, but only high-grade tourmalines of more than 10 carats are worth collecting.

However, Mr. Guo, who manages jade, believes that crystals and tourmalines can only become semi-precious stones and cannot reach the collection level. Mr. Guo told reporters that tourmaline's texture is very brittle and easy to break, and that after a long time, there will be ice or cracks, which can be bought as jewelry and is not recommended for collection.

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