We have 2 vintage scarf clips.  1 is a silver tone metal and one is a gold tone metal.  The silver tone one measures about 1 7/8" square though worn on an angle so it is actually a diamond when displayed.  The oval one measures about 1 5/8" x 1 3/8".  Both are a lightweight metal with clips on the backs to pinch your scarf in place.  I would estimate that these date somewhere between the 1980's - early 2000's.  They are both in nice condition.