Bail

 A bail is a loop of metal attached at the top of a pendant, stone or another jewelry object to allow it to hang from a chain or cord.
Art Nouveau Enameled Pendant With Enameled Floral Bail, by Krementz.

Art Nouveau Enameled Pendant With Enameled Floral Bail, by Krementz.

Victorian Turquoise Pendant/Locket with Plain Loop Bail.

Victorian Turquoise Pendant/Locket with Plain Loop Bail.

Freshwater Pearl Pendant with Elaborate Bail, c.1900.

Freshwater Pearl Pendant with Elaborate Bail, c.1900.