Following agencies are permitted to import diamonds to their laboratories without any import duty, for the purpose of certification / grading reports, with a condition that the same should be re-exported with the certification/grading reports, as per the procedure laid down in Hand Book of Procedures:
(1) Gemological Institute of America (GIA), Mumbai, Maharashtra.
(2) Indian Diamond Institute, Surat, Gujarat, India.
(3) International Institute of Diamond Grading & Research India Pvt. Ltd., Surat, Gujarat, India.
(4) HRD Diamond Institute Private Limited, Mumbai, Maharashtra, India.
(5) International Gemological Institute (India) Pvt. Ltd, Bandra Kurla Complex, Mumbai.