grading laboratories

Gem Certification and Assurance Lab (GCAL)

GCAL is a diamond research and identification laboratory specialising in guaranteed diamond grading:

• Employs some of the top experts in the diamond grading industry.
• Equipped with state-of-the-art technologies and instrumentation, including the DTC DiamondSure, DTC DiamondView and FTIR Infrared Spectrophotometer.

GCAL is the only diamond grading company with a "Zero Tolerance" Consumer Grading Guarantee that provides cash-back for any error in grading or identification of the certified diamond. See Guarantee.

For further information visit www.gemfacts.com

Sample of GCAL Grading Report

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