Program aims to educate young consumers about mined stones’ positive qualities.
A rare 7.01-carat, fancy-vivid-yellowish-orange diamond ring will lead sale.
Members of the editorial team pick their favorite pieces from the internet.
Top items fetched more than three times their high estimates.
Environmental charity notes improvement — but believes the industry has a way to go.
Bulgari blue-green diamond ring was top seller, bringing in more than $1 million.
Floating diamonds and luminescent spinels were among the eye-catching designs at the Geneva show.
Manufacturers are putting a twist on classic setting techniques.