This amazing Tungsten Carbide ring by Thorsten features an inlay of high-grade Spectrolite, a semi-precious gemstone from Finland and known for its dazzling display of color when illuminated. Spectrolite is also regarded as a healing stone and has been recognized to aid those seeking peace and tranquility. Engraving available! See Pictures for Details. Does Not Delay Order. Includes Thorsten Lifetime and Lifetime Sizing Warranty (excluding re-engraving). Available in an 8mm width. Tungsten Carbide—the newest and strongest metal for jewelry that does not scratch easily. Note, inlay is protected by a resin that can be scratched. Each piece of Spectrolite may differ from the picture. Comfort Fit – domed interior band slides over the knuckle easier with less friction.