Abstract: Process for making jewels such as necklaces, bracelets or the like with different colors on at least two of their faces in sight so that a user can choose to put on the necklace or jewel so as to show one face or the other of the jewel according to the wished color, for instance the user can show a white gold face or a yellow gold face. In general, the process in question consists of a first phase in which noble metal bands (3, 4) showing different colors are put near each other. Then, the bands (3, 4) are coupled by welding (6) and are subjected to a second working phase in which they are bent and welded longitudinally so as to obtain a pipe (19) showing a multiple color. From this pipe (19) it is possible to obtain hollow links to be then mounted and fixed on a flexible core.

Abstract: A process for making jewelry, such as necklaces, bracelets or the like with different colors on at least two of their visible faces such that a person can choose which face of the jewelry to display when it is worn. The process has two phases. In a first phase, at least two noble metal bands having different colors are placed with one long edge adjacent one another and coupled by welding. In a second phase, the welded bands are bent and welded along the free ends of the joined band to form a closed pipe having multiple colors around its circumference. The pipe is sectioned into multiple hollow links which are mounted and fixed on a flexible core to make a changeable jewelry having different appearances on two or more sides.

Abstract: By utilizing the technology according to the present invention, it is possible to work jewels so as to obtain seats or holes even in a very limited space and with a considerable saving in material and labour. For instance, it is possible to obtain seats on pipe or omega type jewels on which the laser beam causes the fusion of both the piece and the inner link core with the utmost precision.

Abstract: Process for making jewels such as necklaces, bracelets or the like with differerent colors on at least two of their faces in sight so that a user can choose to put on the necklace or jewel so as to show one face or the other of the jewel according to the wished color, for instance the user can show a white gold face or a yellow gold face.