Because of the extraordinary state of preservation and the beauty of this pin we have decided not to apply any gold testing methods in order to preserve this item in its original state. Our educated guess would put it between 12-15k yellow gold. Set in gold tubes are 2 white half pearls with very good color and luster. Set above these is a cabochon of Persian turquoise of excellent quality The body of the pin is decorated with filigree and granulation that exhibits the best elements of Etruscan Revival. The star of the show is a completely round ball that is decorated with Persian turquoise and filigree wire that hangs suspended from the center of the pin. The pin back is entirely original and is in excellent working condition. 2.5 x .25 inch.