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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $985,745,544 | 7,718 | 33,441,810 |
| 2006 | $1,023,526,982 | 5,362 | 14,631,790 |
| 2007 | $1,148,989,933 | 48,081 | 13,671,786 |
| 2008 | $1,617,548,485 | 30,169 | 10,283,610 |
| 2009 | $1,301,341,152 | 2,614 | 8,348,854 |
| 2010 | $1,894,701,456 | 3,337 | 8,760,571 |
| 2011 | $2,000,848,937 | 2,862 | 8,484,525 |
Note: Quantity represents Weight in carats
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