Nickel and palladium have been long known to be the major ingredients to give the brilliant white colour for the gold alloys. However, nickel was recently found to be the main cause of allergic problem of some population by the dermatologists and the palladium price kept fluctuating at high level. Substitution of these two metals with other elements is of our main aim. Heraeus has developed some totally nickel and palladium free alloys for production of white gold. The alloys are suitable for all kinds of manufacturing process such as hand-making or casting. Besides, special additives have been added to enhance its fluidity for casting purpose. H-9570A is a hard version of the nickel and palladium free alloy capable of overcoming most of the production problem originated from the insufficient hardness of these type of alloys.