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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $744,953,920 | 0 | 10,562,008 |
| 2006 | $755,422,966 | 0 | 5,815,067 |
| 2007 | $875,105,446 | 0 | 8,763,029 |
| 2008 | $1,017,903,768 | 0 | 6,622,403 |
| 2009 | $590,196,130 | 0 | 2,419,416 |
| 2010 | $596,064,090 | 0 | 2,758,000 |
| 2011 | $1,452,055,865 | 0 | 5,691,586 |
Note: Quantity represents Weight in carats
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