Next Catoca and Luele sales will see lower availability in those sizes, Endiama says.
Unmounted stone has a $550,000 high estimate at upcoming sale.
Average cost of mined stone was $4,063 in 2025, up 25% from 2023.
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.
Company expects positive results in second quarter and has upped guidance for full year.
Shipments fell 17% year on year in April.
Deposit will go on care and maintenance from July.
Patek Philippe timepiece leads sale, fetching $1.8 million.
2-carat and larger stones in demand at key US show.
Economist Akinwumi Adesina has nearly four decades of relevant experience in Africa and globally.