Abstract: The present invention relates to a jewelry (100) having decorative elements (90) in the jewelry (100) that are mobile and can be changed allowing the personalization of the jewelry (100). The plurality of decorative elements (90) is mounted and un-mounted into/from the main frame (10) through the lock system (40) provided at the main frame (10). The main frame (10) forms a track for the elements to oscillate freely. The lock system (40) allows the decorative elements (90) to be secured into the main frame (10). A secondary frame (20) provides firmness to jewelry (100). A flip-over safety lock (70) is provided to further secure the decorative elements (90) and at the same time to hide the mechanical arrangements.