Jewellery items are provided having a plurality of modular elements wherein at least one of such modular elements comprises: at least three connection points for connecting to three further modular elements, each connection point being suitable for connecting said at least one modular element to a further modular element; and at least one intermediate portion, interposed between a first connection point for connection to a first further modular element and a second connection point for connection to a second further modular element of said three connection points, said at least one intermediate portion being configured so as to allow the interposition of a further fourth element between said further first modular element and said further second modular element, wherein said at least one modular element is connected to said three further modular elements and operatively associated with said further fourth modular element so as to allow the jewellery item to pass from a contracted configuration to an extended configuration varying the dimensions thereof Methods for making such jewellery items are also provided.