Which Tourmaline Color Is Best?

Bright, pure tones of red, blue and green are generally the most valued, but the electric vivid green to blue shades of copper-bearing tourmaline are so exceptional that they are in a class by themselves.

Which tourmaline color is best? Bright, pure tones of red, blue and green are generally the most valued, but the electric vivid green to blue shades of copper-bearing tourmaline are so exceptional that they are in a class by themselves.