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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,399,451,599 | 0 | 2,402,341 |
| 2006 | $1,666,640,039 | 0 | 2,651,164 |
| 2007 | $1,826,475,891 | 729 | 2,767,633 |
| 2008 | $2,026,714,527 | 1,039 | 2,683,759 |
| 2009 | $1,450,866,576 | 0 | 2,105,345 |
| 2010 | $1,922,457,694 | 0 | 2,306,125 |
| 2011 | $2,980,818,104 | 0 | 2,707,734 |
Note: Quantity represents Weight in carats
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