There are only a few varieties of tourmaline that I think can approach cuprian tourmaline in brightness. One of them is top quality sea foam from Afghanistan/Pakistan. And how “neon” the material certainly effects it price. This standard round brilliant is just that, brilliant, when I popped the top on her storage box to look at her for the first time in years. It makes me shake my head to realize again, that I have lost my way to her door and the perfection she represents, in Afghanistan/Pakistan,. This wonderful gemstone weighs 1.60 carats and the droplets brightened up when they saw her.