The
yield of carats per load, however, fell steadily. Whereas Barnato in
his first annual report after the consolidation, reckoned each load as
carrying on an average one and three-eighths carats, the yield of the
De Beers and Kimberley in 1907 was 0.37 carats per load. In the first
year of the De Beers Consolidated, the average was not as Barnato
estimated, l}i carats, but 1.15.
Apparently
the Diamond Syndicate advanced the price of rough to the cutters as
much and as rapidly as the prosperity of a prospering public would
permit, and the mines management charged themselves as the Diamond
Syndicate, a sufficient advance to recoup themselves as stockholders,
for the decreasing yield per load and consequent increase of cost per
carat of production.
During
the years of world-wide and marvelous prosperity from 1889 to 1903,
the De Beers Consolidated and the Diamond Syndicate controlled the
African output and the diamond industry of the world, either by the
control of the mines in Africa, or the purchase by the syndicate of the
product of such small mines as