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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $260,000 | 0 | 14,569 |
| 2006 | $180,829 | 2 | 10,000 |
| 2007 | $5,441,299 | 176 | 880,000 |
| 2008 | $4,840,246 | 361 | 1,804,095 |
| 2009 | $1,734,891 | 94 | 470,000 |
| 2010 | $1,216,527 | 31 | 155,000 |
| 2011 | $1,060,524 | 20 | 100,000 |
Note: Quantity represents Weight in carats
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