Customs duty exemption for imported cut and polished diamonds restores non levy on reimports by authorised laboratory agencies under statutory authority. The Central Government directed that the whole of Customs duty and any additional Customs duty payable on the import of cut and polished diamonds by authorised agencies/offices in India of the laboratories referenced under para 4.74 of the Hand Book of Procedure, during the period from 9 March 2012 to 1 March 2017, shall not be required to be paid. The direction concerns re imports of diamonds exported for certification and grading and is issued under the powers conferred by section 28A of the Customs Act, 1962.