Program aims to educate young consumers about mined stones’ positive qualities.
Floating diamonds and luminescent spinels were among the eye-catching designs at the Geneva show.
TEFAF art exhibition sees drop in visitor numbers following three years of Covid-19 disruptions.
Collection includes Van Cleef & Arpels ruby and diamond bracelet that Marlene Dietrich wore in an Alfred Hitchcock film.
Display models: Brands are employing everything from augmented reality to non-fungible tokens.
Pear-shaped stone from philanthropist will go under hammer at John Moran.
US and European demand outweighed slow Chinese market in third fiscal quarter.
Artcurial will offer emerald-cut, D-color stone at Monaco Luxury week in July.
Ring is star of Paris online auction, which will also feature the private collection of designer Jean Fouquet.