Elegant 5.91ct untreated gray blue Tourmaline

This superb natural tourmaline exhibits full color saturation with a dark tone, silky luster, and rich gray blue hue. The combination of its emerald cut and arrow straight faceting makes this gemstone a natural choice for an elegant setting. It measures an impressive 19.6mm x 5.7mm x 5.3mm, and is unheated. Sourced from Mozambique.