This is a really nice little pin, 1 7/8" long, 5/8" wide, and weighing 5.2 grams. The back is marked Sterling, and Germany. Several of the cut jet stones are missing from the perimeter. If you can do the repair, take a look at this.
Gender: Female, Age Group: Adult, Color: Silver and Black, Size: 5/8"X 1 7/8"