Paraiba Tourmaline is named after the greenish-blue-blue tinted tourmaline produced in 1989 in the state of Paraiba, Brazil. Since its first discovery, Paraiba tourmaline has multiplied hundreds of times in value over the past two decades, with top quality pieces now costing more than $60,000 per carat.
Unlike ordinary blue tourmaline, which has a dull color, Paraiba blue tourmaline is very bright, mainly in shades of green to blue, somewhat clear like aquamarine but slightly greener than aquamarine, so that in the palm of your hand you feel like it's a frozen lake.
[Origin].
①Brazil:
Very few neon shades, but just a few years on the extinction of the mine
② Nigeria:
Rich in color, closest to Brazilian, these color differences are mainly due to different copper and manganese content. It is difficult to distinguish Paraiba tourmaline from Brazilian tourmaline by its color, and if it must be identified by its color, Nigerian Paraiba tourmaline is slightly less saturated than Brazilian tourmaline and does not have a neon blue hue.
(iii) Mozambique:
Heated to improve the color, Paraiba comes out with larger grains and higher clarity.
[color grade].
①GUILD certificate classifies the color grade of Paraiba into:
-Blue
-Green
-bluish Green
-Greenish Blue
-Blue - Green
-Green - Blue
Encounter the most brilliant colors, it will be given to the rating of "neon", the above colors can be added in front of Neon, on behalf of the "neon color".
②Commercial Name Grading of Colors
AIGS grades the commercial names of Paraiba's colors:
-Neon Green
-Neon bluish Green
-Neon Blue Green
-Neon greenish Blue
-Neon Blue
[Factors affecting the value of Paraiba]
①Color:
Color is the most important influencing factor, saturated and bright blue is the most popular. Since "Paraiba tourmaline" is fissured, a completely clean and fissure-free stone is much more expensive.
Origin:
Paraiba tourmaline from Brazil can be several times more expensive than that from Africa, and generally speaking, Paraiba tourmaline from Brazil is also more highly graded in color than that from Africa.
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