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In the world, Brazil, Sri Lanka, China, Myanmar and Africa have a large number of gem-quality tourmaline production; Altai, Xinjiang, China also produces tourmaline gemstones of various colors, so where is the highest price of tourmaline? The world's most famous tourmaline is produced in Brazil and the United States, among which the bright blue tourmaline found in Brazil is one of the most popular gemstones in the world; Sri Lanka, China, Myanmar and Africa also have a large number of gem-quality tourmaline production; Altai also produces tourmaline gems in various colors, but the colors are usually lighter and less expensive. The tourmalines produced in Yunnan are mostly medium and low-grade gems. Among them: the blue-blue-blue tourmaline produced in Paraiba, Brazil, is called ParaÃba, the most expensive tourmaline in the world.
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Illustration: Blue tourmaline made by Paraiba
In late 1989, a gemstone exploration team led by Heitor Barbosa discovered a very bright turquoise-blue, 10.5-gram tourmaline at the Mina da Batalha mine in Salgadinho, ParaÃba, Brazil. Its high content of Cu and Mn is obviously different from other elbaite (lithium tourmaline), which appears in the world of gems in an unusual position. This bright blue-green gleam with the sparkling neon light of the phoenix immediately caused a sensation in the gem world. .
This neon blue tourmaline is named after the ParaÃba, but the mine has been discontinued. Later, in 2001 and 2005, new deposits were discovered in Nigeria and Mozambique, which is undoubtedly a great news for those who love gems. However, the name of the minerals used in the two places has caused a lot of controversy. Although it is only a commercial name, some people think that only the one produced in Brazil can have the name of ParaÃba. In 2007, the most prestigious LMHC (Laboratory Manual Harmonization Committee) in the gemstone industry announced that the copper-containing tourmaline from Brazil, Mozambique and Nigeria was officially named Paraiba. In other words, according to the scientific identification point of view, as long as the composition contains a certain copper element, that is, Paraiba tourmaline, it is not limited to the tourmaline produced in Brazil's ParaÃba state, which can be called Paraiba tourmaline. Jewelers and collectors with a view of the origin of the country still regard the copper-manganese tourmaline produced in the ParaÃba region of Brazil as the only tourmaline that can be called "Paraiba".
ParaÃba tourmaline is regarded as the king of tourmaline because of its unusually rare production, unique color, flickering, and unique fluorescent features. Even after the discovery of new veins in Mozambique and Nigeria, the production of Paraiba tourmaline is only about one-thousandth of the annual global production of natural diamonds.
In 989, at the Tusang Jewelry Show, these tourmalines began selling at $100 to $200 per carat, and the price soared to $2,000 per carat in a week, making them dramatically appear in the market. Because the Paraiba tourmaline is not easy to excavate, the crystal is not big, and in recent years, the mineral rights are unclear, the disputes continue, the price has been high, and the retail price can reach 20,000 US dollars per carat. It is almost impossible to see on the market now, and it is an absolute collection.
The color, concentration and origin of Paraiba tourmaline have a great influence on the price, so the color origin of such gemstones is important, such as medium-high hue saturation; blue (electro-optic blue, neon blue, purple blue) ) to blue-green, green-blue or green; the origin is Brazil, Nigeria, Mozambique or others and whether it has been heat treated.
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