Royal Cobalt™ is a combination of all the best features of all alternative metals, often compared to platinum or palladium in color, is a bright white metal that is highly scratch resistant, doesn’t chip or shatter and is hypo-allergenic. It looks and feels like white gold, but is a cost-effective heavier alternative. Royal Cobalt™ also comes in Ion Plated colors such as rose, yellow and black as well as set with diamonds. Royal Cobalt™ neither fades nor tarnishes and should retain its shine for the life of the product. Royal Cobalt™ has a rating of 5 on the Mohs scale of gemstone hardness. It is four times harder than platinum and five times harder than gold.