A very fine cameo in banded agate mounted on an 18k (750 thousandths) yellow gold brooch with a superbly executed double profile highlighting the qualities of the stone. The opaque character of the thick white layer contrasts with the translucent aspect of the thin white layer. A discreet and subtly chic piece of jewellery. 19th century work. Diameter: 2 cm. Gross weight: 7.6 g.