バイカラートルマリン　エメラルドカット　アフガニスタン産　0.98ct【250818-2888】

This is a bi-color tourmaline with a gradient from clear blue to dark gray, weighing 0.98 carats and measuring 9.3×3.5×2.9mm, from Afghanistan.

• The description claims that tourmaline has been found to have permanent electric poles at its ends.