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DIAMOND MINES OF SOUTH AFRICA 257
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A
total of nearly thirty-one million carats, to which may be added, in
order to make a fair estimate of the entire production of South Africa
in the ten years, five per cent, for thefts and the product of the
alluvial deposits and other sources; a grand total of thirty-two and a
half million carats. At the same time (1907), the De Beers group alone
had in sight above the lower levels
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17
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