Granulation is a process that causes very small gold beads to adhere to the surface metal, through heat, with no apparent solder. Granulation can be applied in designs or lines to form textures or designs. This has been a popular way to decorate and texture jewelry items since ancient times. The technique has been known since Etruscan times and was revived in the 19th century.
Victorian Etruscan Revival Bangle Bracelet with Granulation and Wirework Design Elements.