Before sending a gemstone or diamond to Global Gemological Testing Laboratory, contact us to confirm that the material and requested examination can be accepted.

Before Submission

Please obtain confirmation of the requested service, fees, estimated turnaround time, delivery method and any required documentation.

Packaging and Delivery

Follow the laboratory’s confirmed instructions for secure packaging, labelling and delivery. Keep a record of the parcel and tracking details where applicable.

Receipt and Identification

The laboratory should record the received material using an appropriate internal reference and follow its established sample-handling process.

Examination and Reporting

The examination performed and any report issued depend on the agreed service, the condition of the material received and the limitations of the available methods.

Collection, Return and Unclaimed Items

The applicable collection, return-shipping, storage and unclaimed-item arrangements must be confirmed with the laboratory before submission.

Questions

Contact before sending any material.