Abstract: A jewelry item is provided to include a ring-shaped spring and a ring-shaped chain. The ring-shaped chain has a plurality of chain links, each of which is slidably attached to the ring-shaped spring. Each chain link has a plate with a first surface facing the spring and a second surface opposite to the first surface. Each chain link further has a seat and a hook opposite to each other. The hook is inserted into a seat of a subsequent chain link so as to lock the chain links to each other while allowing the chain links to reversibly slide from a compressed position to an expanded position with respect to each other.

Abstract: A jewelry item comprises a ring-shaped spring; a ring-shaped chain comprising a plurality of chain links wherein each chain link is slidably attached to the support element; each chain link comprises a plate having a first surface facing the spring and a second surface opposite to the first surface; a seat and a hook opposite to each other, the hook is inserted into a seat of a subsequent chain link so as to lock the chain links to each other while allowing the chain links to reversibly slide from a contact position to a distanced position with respect to each other.

Abstract: An extensible bracelet comprises an annular element formed by a plurality of links and an elastic ring which is mounted to extend through each link . Each link has a female element and a male element, which are mutually movably attached to the male element and the female element, respectively, of the adjacent links. Particularly, each male element comprises a slot and each female element comprises a side hole for a pin that extends through said side hole and through the slot to restrict the movement of the female element of one link and the male element of the link adjacent thereto away from each other.