Argyle yearly production are as follows; 80% of diamonds are light to dark brown, 16% are yellow to orange, 2% are white, 2% are grey to blue, and less than 1% are pink and green.
The Argyle diamond mine leads the world in volume production of diamond, averaging annual production of 35 million carats (7,000 kg), or about one third of global production of natural diamonds.
Australian Argyle Pink Diamond Grading
International Pink Diamond Grading
GIA Diamond Grading System
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