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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

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
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