Earclip refers to a tension mechanism to hold an ear ornament in place. These are usually designed for women who do not have their ear lobes pierced, but they can be combined with a post as well. Earclips came into use c.1931.
Textured Gold Earclips. Photo Courtesy of Lang Antiques
Marquise, Pear and Round Diamond Earclips. Photo Courtesy of Lang Antiques