Abstract: An article of jewelry comprising a setting and an ornamental member detachably mounted on the setting. The ornamental member has a base and a decorative stone mounted on the base. Extending outwardly from the base is an elongated slender portion for retaining the ornamental member to the setting. On the setting there is an aperture for receiving the elongated retaining portion. In one aspect of the invention the retaining portion has an inner locating portion which is unitarily formed with the base and a separate outer locking member which is rotatably attached to the locating portion. When the retaining portion is inserted into the aperture, the locating portion lies within the aperture and the locking portion extends outwardly from the setting. The ornamental member is fixedly mounted on the setting by inserting the retaining portion into the setting and rotating the locking member to block the removal of the ornamental member from the setting.