Opinion
SOAPBOX: Over-grading must be stamped out
![](https://www.jewelleryfocus.co.uk/wp-content/uploads/2014/11/19-e1415184859714-780x470.jpg)
The global diamond industry is currently facing a range of tough challenges. But, says ERNIE BLOM, the issue of apparent over-grading of diamonds by some labs must be treated as a priority.
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