Program aims to educate young consumers about mined stones’ positive qualities.
Unmounted pear-shaped stone originating from South Africa will lead Geneva Magnificent Jewels sale.
Piece is estimated to fetch up to $2.3 million at Hong Kong sale.
A rare 7.01-carat, fancy-vivid-yellowish-orange diamond ring will lead sale.
Stellar stateside stones: Colored diamonds came out on top at the December sales, while sapphires continued to draw collectors’ interest.
Ring with cushion-cut, 3.49-carat, internally flawless stone leads Magnificent Jewels auction.
Auction also sees strong demand for collections from Hollywood legends Mary Tyler Moore, Barbara Sinatra and Tony Randall.
Unmounted stone has a high presale estimate of $5 million.
Cushion brilliant-cut, 15.48-carat stone is top seller at Hong Kong Magnificent Jewels auction.
Pair, containing oval mixed-cut stones weighing 12.20 and 11.96 carats, will lead New York Magnificent Jewels sale.
17.61-carat blue stone is most expensive sold at auction this year.