Program aims to educate young consumers about mined stones’ positive qualities.
Is there a place for lab-grown stones at auction? Four experts weigh in.
Auction also sees strong demand for collections from Hollywood legends Mary Tyler Moore, Barbara Sinatra and Tony Randall.
Despite a poor showing at the fall sales, large colored diamonds and historical jewels look like they will gain steam this spring.
10.57-carat stone carries estimate of $35 million.
Signed jewels and white diamonds are some of the safer bets for collectors, insiders say.
Yellow diamond falls short of estimate with final price of $12.4 million.
Golden Canary diamond expected to bring in more than $15 million in New York.