This South African diamond just sold for R300 million – that's considered a bargain - Business Insider South Africa

The biggest diamond to ever be sold at auction just fetched R300 million, which is far lower than Christie's expected.

• A diamond mined in South Africa some 20 years ago went under Christie's hammer in Geneva on Wednesday.
• As the largest white diamond to ever be sold at auction, "The Rock" was expected… [+1774 chars]
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