A rotating jewelry clamp includes a base and a rotatable housing supported thereby such that the housing can be freely rotated relative to the base. The housing threadably receives a clamp assembly with a hollow outer sleeve and a reciprocable piston extending therein. The outer sleeve terminates in an overhanging stationary jaw and the piston includes a movable jaw which mates with the stationary jaw to form a clamp. A lower portion of the piston engages a coil spring within the rotatable housing to urge the piston upward toward the stationary jaw so that jewelry pieces are clamped into position between the movable jaw and the stationary jaw via tension caused by spring action. Insertion and removal of jewelry pieces is accomplished by grasping an insulated handle protruding from the piston and urging the piston downward within the outer sleeve against the spring action, thus separating the movable jaw and stationary jaw.