The rough diamond trade also reflected a fall. Exports of rough diamonds decreased 14.10 percent in value to amount to US$ 1.12 billion. But the volume of the exports - 100,42,705 carats rose 5.43 percent on y-o-y basis, reports add. Imports of rough diamonds amounted to 80,06,216 carats representing a 22.82 percent fall on y-o-y basis. The rough diamond imports valued US$ 979.45 million (30.09 percent decline on y-o-y basis).