Sunday, 31 December 2017

Paraiba tourmaline - Star of the Gem World

Paraiba tourmalines have become one of the most popular gems in the world. First discovered in the 1980s by Heitor Dimas Barbosa - who spent years digging in the hills of the Brazilian state of Paraiba, Paraiba tourmaline's vivid glow cannot be found in any other gemstone.
Boghossian ring with 5.17 carat Paraiba tourmaline from Mozambique

Copper-bearing tourmaline weighing 75.20cts, from Mozambique
A product of the trace element copper, colours range from turquoise to blue-green. Good quality Paraiba from Brazil over three carats is very rare. Authentic Brazilian Paraiba tourmalines can achieve five figures per carat.
In 2003, a wave of luminous green-blue tourmalines entered the market, mined in the copper-rich mountains of Mozambique and Nigeria. They are Paraiba-like in every way, with only minute chemical differences to those unearthed in Brazil.

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