South African billionaire Johann Rupert is $1.3 billion richer on a Cartier jewellery boom
Johann Rupert's fortune has risen to $17.4 billion from $16.1 billion in March, driven by record jewellery sales at Cartier and Van Cleef.
Van Cleef & Arpels
Skip to content
Johann Rupert's fortune has risen to $17.4 billion from $16.1 billion in March, driven by record jewellery sales at Cartier and Van Cleef.