Measuring approx. 9mm at widest, centering a round turquoise cabochon measuring approx. 4.8mm, flanked by two oval turquoise cabochons measuring approx. 4.5x3.5mm, framed by thirty Rose cut diamonds weighing approx. 0.10ct., fashioned in silver and 9K yellow gold. Circa 1875. Size 6 1/4.