18k yellow gold, polychrome enamels and round brilliant-cut diamonds, set on a base of gray and natural brown agate. Hallmarked "Damiani - 750 - 1481 AL."
Height x width x depth brooch: 8.4 x 4.8 x 1 ,4 cm, weight 40.2 g.
Height x width x depth agate: 1.7 x 93 x 6.5 cm, weight 159.80 g.
Total weight: 200 g.
Item condition: ***** excellent