Jewelry with retractable member

A jewelry apparatus comprising:

• a front planar body and a back planar body hingedly attached to one another by a transverse hinge, wherein each of the front planar body and the back planar body comprise a central spine having a first leaf and a second leaf opposite thereto that are each hingedly attached to the central spine by a first spring hinge and a second spring hinge, respectively, that are oriented in a lengthwise direction that is perpendicular to the transverse hinge;
• a retractable member secured to one of the front planar body or the back planar body;
• and
• a cam incorporated in the transverse hinge at a position in operative engagement with the retractable member and incorporated to rotate when either the front planar body or the back planar body is rotated to an open position, thereby pushing the retractable member into a protruding position;
• wherein each of the first spring hinge and the second spring hinge have a spring that automatically biases the respective first leaf and the second leaf of the respective front planar body and back planar body into an elongate position toward the central spine after the front planar body is folded along the transverse hinge to an open position.