Tungsten Carbide Yellow Gold Plated Ring With Koa Wood Inlay

About Tungsten Carbide  Tungsten carbide is the most scratch-resistant metal found on the planet. It is twelve times harder than  gold, six times harder than steel, and four times harder than titanium. In short, it is the hardest-strongest metal on Earth.  Hawaiian : Koa Wood Inlay Rings  These beautiful and highly sought after Koa-wood rings are made of strong tungsten and rare, exotic wood from Hawaii. These rings are made of extraordinary quality bringing together the most scratch-resistant material and one of the rarest woods on earth.