CIBJO release 31-10-2016 CIBJO concludes 2016 congress in Yerevan, Armenia, with focus on CSR, gem guides, grading and disclosure Click PDF icon on left to download document Steven Benson2017-12-07T11:56:27+00:00 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail