To provide a method of assembling gold alloy parts that enables identical or different gold alloys, particularly gold alloys of different colors, to be assembled.

This method of assembling gold alloy parts comprises the following steps: (a) a film of tin is applied over at least one portion of a face of a first gold alloy part; (b) the tinned face of the first gold alloy part is brought directly into contact with a face of a second gold alloy part; (c) the first and second parts are pressed against each other; and (d) the assembly is heated.