Tourmaline CharmA 9mm tourmaline with eleven white CZ rounds at 1. 30mm in a 269mm 925 sterling silver cluster setting the Tourmaline is the most unusual tone in the tourmaline trio. sits between warm beige and pale gold: a neutral stone colour that works as an anchor for more saturated pieces in a collection. The same transparency that distinguishes natural tourmaline from CZ alternatives is fully visible at 9mm. The white CZ halo creates contrast with the stone's