PARA 4.4.2.1
At the time of export of cut and polished diamonds for
certification/grading, exporter should give an undertaking to the
customs that the cut and polished diamonds will be re-imported within
three months of exports for certification/ grading. The export invoice
should clearly indicate the estimated value, height, circumference,
weight of each diamond to be exported for certification/ grading so that
at the time of their import, the above specification could be compared
with the original ones to establish their identity. Subsequently these
cut and polished diamonds would be exported as per the provisions of the
Policy.