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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $20,425,389 | 0 | 110 |
| 2006 | $36,334,922 | 0 | 124 |
| 2007 | $97,717,201 | 93 | 407,630 |
| 2008 | $454,626,679 | 934 | 4,670,000 |
| 2009 | $358,984,207 | 851 | 4,255,214 |
| 2010 | $631,663,416 | 632 | 674,108 |
| 2011 | $791,539,748 | 413 | 0 |
Note: Quantity represents Weight in carats
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