The undulating structure of each of the links allows for the links.

interconnected while still creating a substantially flat rear plane. By providing structure to maintain each of the links substantially in fixed position with respect to an adjoining link, the undulating nature of each of the links contributes to the substantially flat plane 19 formed at the rear of the necklace, allowing it to be worn without adjoining links flipping and enabling the links to lay substantially flat against the chest of the wearer.

Such orientation of the links, one with respect to the other, is maintained substantially fixed in accordance with the teachings of this invention. Such substantially fixed orientation of adjoining links is independent of the total number of such links because each of the intermediate links contain substantially the same structural elements enabling the undulating links to be connected with respect to each other so as to create a substantially flat rear plane and to substantially lock each of the adjoining elements in substantially fixed position with respect to other adjoining links as seen.