According to reports by the Antwerp World Diamond Center, the trade of polished diamonds has increased considerably in Antwerp during November. In the same period, trade of rough diamonds declined.%% Polished stone exports scaled up by 26.4% to value at $1.05 billion, in comparison to November of last year. In volume, polished exports moved up by 5.12% to amount to 829,071 carats. Imports of polished stones in November surged by 26.0% to value at $873.3 million.%%For the eleven months January - November, polished exports were higher by 12.8% to $9.85 billion and in volume by 6.9% to 8.86 million carats. In the same period, imports also hiked up to 10.8% amounting to $9.27 billion, and in volume by 4.9% at 9.12 million carats.