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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,031,896,134 | 0 | 3,979,637 |
| 2006 | $1,352,410,556 | 0 | 13,873,842 |
| 2007 | $1,272,805,253 | 1,213 | 5,309,546 |
| 2008 | $1,396,448,110 | 1,481 | 17,799,267 |
| 2009 | $958,953,097 | 1,358 | 13,425,879 |
| 2010 | $1,140,703,372 | 0 | 10,850,911 |
| 2011 | $1,996,549,969 | 0 | 12,825,791 |
Note: Quantity represents Weight in carats
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