Paraiba tourmaline is a rare, unique and vibrant gemstone discovered in Brazil in the 1980s. It is valued for its neon blue and green shades, as well as for its copper and manganese content, which distinguishes it from other types of tourmaline.
The value of Paraibo tourmaline is estimated based on color saturation, purity, cut and weight in carats, while neon blue, high saturation, fewer inclusions and a larger size are considered the most desirable.
There is disagreement in the jewelry industry about whether the term "Paraibo tourmaline" should be limited to stones from a Brazilian deposit or also include stones from Nigeria and Mozambique, as this may affect the value of the gemstone.
The value of paraiba tourmaline is determined by four parameters: color, purity, cut and weight in carats. The cost estimate also takes into account the origin and any processing performed. The weight in carats, especially for paraiba tourmalines, plays an important role, as it significantly affects the assessment of the overall quality of this special gemstone.
Prized for its stunningly bright neon blue and green shades (due to copper and manganese), Paraiba tourmaline stands out among other varieties of this precious mineral. These mesmerizing shades range from bright blue to a delicate mint green, presenting a fascinating sight for both the eyes and the scientific mind.