Vintage Diamond Enamel Pin

Centering a Round Brilliant cut diamond weighing approx. 0.65ct., framed by six Single cut diamonds weighing approx. 0.30ctw., further framed by six Round Brilliant cut diamonds weighing approx. 0.60ctw., with a drop set with three Round Brilliant cut diamonds weighing approx. 0.30ctw. and one Single cut diamond weighing approx. 0.03ct., fashioned in 14k yellow gold. Length 1 15/16 inches.