Program aims to educate young consumers about mined stones’ positive qualities.
Unmounted stone has a $550,000 high estimate at upcoming sale.
A Fabergé diamond and aquamarine necklace from 1911 could fetch up to $600,000 in New York.
Revenue from jewelry, watches, clocks and valuable gifts up 20% year on year.
Shipments fell 17% year on year in April.
Patek Philippe timepiece leads sale, fetching $1.8 million.
Economist Akinwumi Adesina has nearly four decades of relevant experience in Africa and globally.
James Marks will fill the role, starting June 1.
Anna Martin received prize for Lifetime Achievement, and Tiffany & Co. for leadership in sustainability and philanthropy.
Edward Asscher has secured another term as vice chair.
Luxury jewelry and fashion service aimed at private clients.