Tungsten Carbide rings are 10 times harder than gold and five times harder than titanium. The inner band is slightly rounded for a comfortable fit; add reliability and you've got a ring that really delivers. This sleek 18k gold IP tungsten carbide wedding band features a two-tone finish with a premium polished surface. The thin brushed center stripe gives the band just the right amount of contrast. The perfect combination of classic and trendy giving an attractive modern touch to a traditional design.