Program aims to educate young consumers about mined stones’ positive qualities.
Eternal Pink diamond sells for same price at high-value Sotheby’s auction.
Eye bangle fetches nearly $1 million at Geneva Magnificent Jewels.
Stone was most valuable jewel at recent Geneva auction season, says Sotheby’s.
Christie’s garners $202.2 million from three-part auction.
Ring from Heidi Horten collection garners $14.6 million.
Several big-ticket items did not appear in results.
Late Austrian billionaire’s jewelry assortment set to be most valuable in auction history.
Studs, bracelets and rivières are getting a refresh.
2.42-carat fancy-intense blue is top-seller at New York auction, bringing in $1.4 million.