Country overtook Botswana in 2023.
Shai de Toledo and Rafael Papismedov will leave less than two years after partner Oded Mansori exited and came back.
Figures down by more than half for first quarter, as miner processed only stockpiled ore.
Some 175 locations shut doors, compared with 166 a year ago.
J.R. Dunn can provide origin information for every natural stone it sells.
Role will create strategic direction throughout the natural and lab-grown diamond sectors.
A pair of Cartier pink and white diamond earrings was the top seller, fetching nearly $3 million.
Vast Resources will send package of 129,400 carats for valuation.
Family member will buy 23.24-carat stone, which has royal Indian provenance.
Figure for all diamonds down 0.3% in first quarter.
Price stabilization at end of period gives way to a return to cautiousness amid fear of tariff impact.