International
De Beers unveils £3.9m expansion of its Surat diamond grading centre
![](https://www.jewelleryfocus.co.uk/wp-content/uploads/2016/12/IIDGR-Surat-e1481199397504-780x470.jpg)
De Beers, the world’s largest diamond mining company, has unveiled an expansion at its Surat diamond grading and testing centre.
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