Diamond and pearl tiara, Koch, circa 1910, of open work design, centring a line of nine cultured pearls alternating between baton spacers millegrain-set with rose diamonds, framed by a laurel wreath embellished with diamonds and pearls and another designed as a line of collet-set diamonds alternating between pearls further flanked by a line of millegrain-set rose diamonds, inner circumference approximately 340 mm, cultured pearls of later addition, accompanied by a Koch Frankfurt AM Baden Baden green leather fitted case. Please note that the pearls have not been tested for natural origin.