WFDB express concern over undisclosed diamond treatment
The president of the World Federation of Diamond Bourses (WFDB), Ernie Blom, today expressed his concerns over the discovery by the GIA of a shipment of allegedly treated diamonds.
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The president of the World Federation of Diamond Bourses (WFDB), Ernie Blom, today expressed his concerns over the discovery by the GIA of a shipment of allegedly treated diamonds.