18k yellow gold and 925 thousandths silver brooch, featuring a medallion painted on porcelain depicting an antique-style scene, including allegories of death and lies, its reverse depicting an antique-style landscape of ruins (a few chips and scratches), in a surround of seventy-eight rose-cut diamonds, secure clasp. Old 18th-century watch back mounted as a brooch. Total estimated diamond weight: 0.50 ct Diameter: 4.8 cm Gross weight: 25.7 g