Ladies, the new convenience jewelry item today is the "reader" pin for eyeglasses to keep from being lost while not in use.  The old chain worn over the neck just gets in the way.  These Rose/Heart pins come in both silver and gold finishes and are great for day to day wear.  Inner circle measures 3/4".  They won't be wide enough for some of the larger frames found most on sunglasses however.  Check some of the other styles.