The article discusses the main ways of controlling the properties of gold jewelry alloys. We analyzed the types of modiёers and the role of alloying components in alloys. There are described study the effect of the crystallization rate on patterning modifying alloys and their role in the inheritance of a homogeneous, ёne-grained structure of the base, target alloy. Here are described analytical and technological-mechanical equipment, which is used in the development of new alloys and modes of their production.