Born in Polvijärvi, Finalnd in 1961, she has studied stonesmithing and silversmithing and received a degree of Master of Fine Arts at the University of Industrial Arts of Helsinki in 2005. Since 1987 she has taken part in several individual and collective exhibitions in Europe and the USA. In addition to her artistic career, Mustonen has worked as a teacher in jewellery art and in 2010 she started working as the manager of Fine Arts in the Saimaa University of Applied Sciences. Mustonen has taught in many institutions abroad.