From left to right: White Gold, Tungsten, Titanium, Platinum
The image to the right demonstrates how each metal will look in roughly 1 year from the day you put it on. As you can see all the metals have scratched BUT tungsten. This is because tungsten is one of the most durable metals known to man. This type of metal is prefect for an active man because he will not need to take off the ring ever. It is rated 8.5 - 9.5 on Moh's Hardiness Scale where diamonds are a 10. Tungsten is maintaince free and will never need to be re-dipped or re-polished.
Tungsten Carbide is an exotic metal that has become the most popular type of metal for mens rings. It has risen to the top because of it's extreme hardiness, earned the name scratch less and polished for life under normal wear.
Tungsten is rated an 8.5 - 9.5 on Mohs Hardiness Scale where diamonds sit at the highest spot as a 10. Tungsten Carbide is about 10 Times harder than 18K Gold, 5 Times harder than tool steel, and 4 Times harder than titanium. Reflection with a sparkling luster. Mirror polished finish and corrosion resistance.