Accredited Gem Laboratory

Accredited Gem Lab image supplied by: Underwood Jewelers

The American Gem Society Accredited Gem Laboratory -
Professional Gemological Identification Services

The American Gem Society Accredited Gem Lab is a special designation awarded to select members that have met the strict requirements listed below:

A permanent designated laboratory space
Diamond scales that measure carat weight to 0.002 carat accuracy
Binocular microscope with at least 10X magnification
Leveridge gauge or millimeter gauge for measuring diamonds and color gemstones
Diamond grading light source for evaluating diamond color
Master Color Comparison diamonds for evaluating diamond color
Refractometer - testing of color gemstones
Polariscope - testing of color gemstones
Dichroscope - testing of color gemstones
Long wave and short wave UV light source - testing of diamonds and color gemstones
Specific gravity liquids or scale attachment - testing of color gemstones
A gemological reference library - source of information regarding the identification, evaluation and valuation of diamonds and color gemstones

AND

A Certified Gemologist® or Certified Gemologist Appraiser American Gem Society® on staff to oversee the proper use of the equipment and library.

Contact Melissa Spence, mspence@ags.org for an application.

Shop with an American Gem Society Jeweler

Why shop with an American Gem Society jeweler? That’s easy.

Because they have pledged to protect you, the consumer, they promise fair pricing and honest value on their merchandise. You know what you’re getting.

What else do they promise?

To get and stay educated. Each year they have to re-test to maintain their certification as a Registered Jeweler, Certified Gemologist or Certified Gemologist Appraiser

To have consistent business practices. What this means for you, is that if you shop there today, you can expect a similar atmosphere a year from now. American Gem Society members cannot be a fly-by-night operation. In fact, they have to be in business at least two years to apply for membership. Most American Gem Society members have been in business an average of 60 years!

To abide by Society rules. For you, this means you have an ally on the slim chance something should go wrong. You can contact us, and we will investigate the issue.

When you shop with a jeweler who is not an American Gem Society jeweler, you are shopping alone.

Accredited Gem Laboratory

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Shop with an American Gem Society Jeweler