Diamond is the hardest material known, is extraordinarily wear-resistant and has a very small friction coefficient. These properties make diamond an excellent material to use as cutting instruments in the medical field and in material processing. In addition, Diamond presents itself as the "choice material" for the production of micro-technological manufactured components. Applications such as diamond micro-blades and diamond micro-gearwheels are such considerations. A comparison of the mechanical properties of GFD diamond layers and natural diamond show that GFD diamond layers have somewhat higher mechanical strength than that of natural diamond.