1178 Winterauktionen 24.–25.11.2023 Collection of three blue topazes in heart- and emerald-cut Late 20th C. Consisting of a heart-cut topaz weighing approx. 11,19 carats, a heart-cut topaz weighing approx. 11,61 carats and an emerald-cut topaz weighing approx. 26,80 carats. 10,1 g.