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Signet, DPA Setting Synthetics Detection Criteria
Signet Jewelers is working with the Diamond Producers Association (DPA) and product-testing firm UL on an initiative to establish quality
News Apr 06, 2017 Joshua Freedman
JeanMarcLieberherr
DPA to Scrutinize Synthetic Detection Machines
The Diamond Producers Association (DPA) plans to audit synthetics detectors to help the industry navigate its way
News Feb 08, 2017 Joshua Freedman
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