All rings with fine gemstones should be removed before heavy work. Tourmaline varies in its toughness, but does not take exceptional care in its uses in jewelry. Toughness is a separate issuer from hardness.
All rings with fine gemstones should be removed before heavy work. Tourmaline varies in its toughness, but does not take exceptional care in its uses in jewelry. Toughness is a separate issuer from hardness.