Best Answer: So used to something it doesn't impress you anymore. Unimpressed, unfazed. A person who is blasÃ© about something would respond Meh.
While cobalt is harder than titanium, and therefore more scratch resistant, tungsten is still the hardest metal currently on the market. In simple terms, although cobalt and tungsten are both extremely hard metals, a tungsten ring will have a higher resistance to scratching. MONARCH-Tungsten Diamond Ring.
Tungsten rings are the most wear resistant rings 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.