To provide a method for manufacturing jewelry with high decorative effect by easily bonding metals having different melting points.

The method for manufacturing jewelry characterized by bonding metals with different melting points includes the following processes (1)-(5). (1) A process for manufacturing a model for casting by putting (applying) a paste which can be burned out in an investment material in a desired shape and thickness on the whole or a part of a surface of the metal A having an optional shape. (2) A process for mounting a spur to a paste part of the model for casting. (3) A process for burning out the paste after burying and hardening the casting model with the spur in the investment material. (4) A process for casting by pouring the metal B with a melting point lower than that of the metal A into a space generated by the burning-out for bonding both the metals. (5) A process for taking out a cast from the investment material and finishing the cast.