This is an original Edwardian 18k yellow gold and platinum diamond and emerald pin. This pin is set with an old mine cut diamond in the center accentuated by rose cut diamonds and square cut emeralds. The approximate weight of the center stone is 0.25ct and the approximate total weight of the rose cut diamonds is 1ct and the total approximate weight of the emeralds is 0.20ct. The diamonds are H-I color and VS1 clarity. The top of the pin is platinum and the back is 18k yellow gold. The length of this pin is 3 inches