YearTrade ValueWeight (kg)Quantity
2005$1,147,6491890,000
2006$1,265,70700
2007$1,483,13530150,000
2008$2,127,39156280,000
2009$641,77840200,000
2010$394,27656280,000
2011$131,08824120,000
Note: Quantity represents Weight in carats