Cartier boom adds $1.3 billion to South African billionaire Johann Rupert’s fortune
African Insider | 23.08.2026 18:00Johannesburg – South Africa’s richest man, Johann Rupert, has added about $1.3 billion to his fortune as strong demand for Cartier and other luxury jewellery brands drives a surge in the value of his Richemont holdings, a report says.
