I never knew that!For GIA, for instance, if that diamond has been reported stolen, GIA will not confirm the report’s details.
Good remark, Wink.Yes. If your diamond is stolen or lost let the lab know. GIA keeps track of these and even removes them from report-check so they cannot be verified. Incoming diamonds for grading are also checked against that list. I am not sure if these are spot-checks or if this happens on all incoming diamonds for grading but they do flag these cases.
Lieve Peeters of CBI (who also serves as industry-expert to the Belgian and other police-forces) has seen successful examples of stolen diamond being traced in this way by GIA.