An Accredited Gem Laboratory® is a special designation awarded only to qualifying AGS member firms that have proven their dedication to professional gemology.

Hannon Jewelers Accredited Gem Laboratory contains gemological equipment and reference materials in a dedicated space for research and analytical purposes.

According to standards specified by the American Society of Appraisers, a full laboratory of instruments is employed to make gemstone and diamond evaluation. The list of instruments used includes, but is not limited to:

• Zoom Binocular microscopes
• Digital measuring devices
• Spectroscopes
• Fiber optic illumination
• Refractrometers
• Electronic Balances
• Polariscope
• Color Comparison certified diamonds
• Ultra Violet light sources
• Specific gravity liquids
• Proportion measuring devices