Vintage 1920s Art Deco~925 Sterling Silver Filigree Pin~Prong-set Natural Carnelian Quartz~Bordered by 12 Marcasites set in sterling stars. Beautiful and Pristine! This pin is stamped 925 followed by another stamp which is hard to decipher, could be a G or the symbol of a gem. Size is 1 7/8" wide by 1" tall. Very well made...the back is almost as pretty as the front.  Absolutely a stunner! The carnelian stone has been used for centuries in Egypt, many believing it to enhance fertility, passion or give courage to warriors.  Outside of Egypt, it was used by wizards to protect the wearer from sickness and calamities. It most often comes from Egypt, Brazil, Uruguay, and India. This stone is natural, not dyed, because when held up to the light, it appears cloudy, and without any striping.