The Oppenheimer family saved R111 billion through one decision

• The Oppenheimer family saved R111 billion through selling their 40% stake in De Beers in 2011, avoiding a potential decline in the company's value.
• The Oppenheimer family sold their stake in De Beers for $5.1 billion in 2011, which would be worth $7.73 billion in 2026 money, and the company is now being sold for $1 billion.
• The sale of De Beers to a new owner marks the end of the Oppenheimer family's control over the company, which had dominated the diamond industry for decades through its Centralised Selling Organisation.