This is a stylish, affordable ring.  Tungsten carbide is very hard and scratch resistant, but can shatter under extreme force.

My only complaint about using this, or any other tungsten carbide ring, as a wedding band is that these very hard materials need to be made thicker than traditional materials to make the ring strong enough.  Thus the ring digs in the adjacent fingers when you close your hand.  My white gold wedding band is about half as thick and thus more comfortable to wear.