Nigeria, May 16 -- Johann Rupert, the wealthiest man in South Africa and the influential chairman of luxury powerhouse Richemont, has added a staggering $2.45 billion to his fortune in 2025, showing his exceptional grip on the global luxury goods market.

As of mid-May, data from the Bloomberg Billionaires Index places his net worth at approximately $16.1 billion, representing an impressive 17.9 percent rise since the start of the year.

This significant increase is largely attributed to the strong performance of Richemont's jewelry division, especially through its leading brands like Cartier, Van Cleef & Arpels, and Jaeger-LeCoultre. Despite broader concerns in the luxury sector over slowing demand in key markets like China and inflation...