Tungsten Rings are the most wear-resistant available on the planet. Tungsten is about 10 times harder than 18K Gold, 5 times harder than tool steel,and 4 times harder than titanium. Tungsten measures between 8 and 9 on the Mohs hardness scale. (Diamonds are a 10 – the highest.)Due to their extreme hardness, Besttohave Tungsten Rings will hold their shape and shine longer than any ring on the market.