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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,805,822,696 | 62,881 | 1,182,706 |
| 2006 | $1,696,487,385 | 50,371 | 1,112,264 |
| 2007 | $2,107,665,781 | 264 | 1,209,708 |
| 2008 | $2,621,087,141 | 258 | 1,147,690 |
| 2009 | $1,666,092,311 | 142 | 534,700 |
| 2010 | $1,704,632,022 | 196 | 840,245 |
| 2011 | $2,878,695,302 | 283 | 1,227,118 |
Note: Quantity represents Weight in carats
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