top news
IIDGR Expands Services in China
Beijing: The International Institute of Diamond Grading & Research (IIDGR), part of De Beers Group, has announced it is expanding its existing grading partnership with
14 September 2017
Beijing: The International Institute of Diamond Grading & Research (IIDGR), part of De Beers Group, has announced it is expanding its existing grading partnership with
Singapore: The International Institute of Diamond Grading & Research (IIDGR), part of The De Beers Group of Companies, yesterday announced that it has established its