Tungsten carbide is more scratch-resistant than gold so your ring will look the same as it did on your wedding day for years to come.
Gold has been a precious metal for millennia. It's shiny, doesn't corrode, and can be easily manipulated. The flexibility of gold makes it easy to form into complex shapes, but it also makes it easy to deform if you wear it every day. For people who work with their hands, something a little more robust than gold might be a good choice.
Tungsten carbide is an extremely durable substance — so durable, in fact, that the Tungary Tungsten ring comes with a lifetime guarantee. That's not to say that the ring is expensive at all. In fact, it's a great value for something that won't scratch or irritate sensitive skin. One Amazon reviewer who said that her husband usually experiences a "green or bruised" area with other rings encountered no problems with this one.
Tungsten is a really hard metal, so there are some drawbacks to the material. If the ring is hit with a lot of force or catches onto something, it will break instead of deforming like gold. It sounds bad, but it's actually a better option than injuring your finger in a freak accident.
It's also difficult to cut off if first responders need to remove it — a special cutting tool has to be used and not every ER or EMT will have one. Tungsten rings also can't be resized, but given the low cost, you might be better off buying a new one if you need to change your size.
Overall, tungsten rings are a great choice for people who work with their hands a lot and don't want to scratch their rings. The weight and shape of the ring feel very similar to gold, and the smooth, shiny appearance is appealing.
Given the affordable price, this could easily be a backup ring but it might end up being the only ring you wear.
Pros: Inexpensive, scratch resistant, leaves no green marks, shatters on impact instead of catching on items
Cons: Hard to cut, can't be resized
Buy the Tungary Tungsten Rings for Men for $12.99-$13.99 from Amazon