PURPOSE: To combine noble metals of different color tone so as to manufacture a ring of new design by fitting a 1st noble metal worked by pressing in the groove formed at the outer circumference of a 2nd noble metal, welding both metals and finishing the surface thereof.

CONSTITUTION: The 1st noble metal 11 having a prescribed lateral pattern shape is formed by pressing a plate material of platinum alloy. Next, the 18 carat yellow gold of ring like finger ring shape as the 2nd noble metal is prepared. The groove 15 which is matched to the shape of the 1st noble metal 11 is formed at the outer circumferential part of the 2nd noble metal 13. Next, the 1st noble metal 11 is fit in the groove 15 of the 2nd noble metal 13, spot- welded, and fixed temporarily. Then, the 1st noble metal 11 is fixed to the 2nd noble metal 13 with the gold brazing and the ring 17 combined with noble metal materials of different cold's obtained. Then, the outer circumference, the inner circumference and the end surface of the ring 17 is finished by grinding and polishing.