Trying on Mrs. Astor’s Emerald and Diamond Necklace.

NEW YORK – There has never really been, before or since, a figure as prominent in the New York social scene as Brooke Astor. In addition to being a renowned philanthropist and socialite, Mrs. Astor was also a collector. Among the exceptional Property from the Estate Brooke Astor on 24-25 September, this Platinum, 18 Karat Gold, Emerald and Diamond Necklace by Bulgari (Est. $250,000-350,000) is a glittering highlight.