Program aims to educate young consumers about mined stones’ positive qualities.
November sale also features jewelry from Fred, Bulgari, and other top houses.
Ring featuring 1.63-carat blue was top seller at $942,848.
Auction house hires Tom Burstein as department’s director, and Peggy Gottlieb as senior specialist.
Geoff Hess will be based in New York.
Sapphire and diamond piece was top seller at Jewels and Jadeite sale.
Executive previously ran the auction house’s jewelry division in Europe.
Eva Violante succeeds Sara Thomeier in role.
Pink-diamond necklace by Boodles is lead item, fetching $1.9 million.
Pre-owned timepieces are beating jewelry at auction and outselling hard-to-get newer models.
A necklace containing 45.02 carats of Burmese pigeon’s-blood rubies and diamonds was the top seller, fetching $385,258.