YearTrade ValueWeight (kg)Quantity
2005$35,688,32604,983
2006$31,443,32101,463
2007$32,440,181312,378
2008$29,306,719312,899
2009$25,540,1153690,838
2010$42,698,19200
2011$48,995,656051,596
Note: Quantity represents Weight in carats