• The international Standard certification

    AGL is the most trust named for expert adn impartial certification of diamonds,colored stones...

  • We provide the best Educations of gemology

    The AGL Education of Gemology gives you the comprehensive knowledge of diamonds and colored stones you need to succeed anywhere in the jewelry business...

  • The worldwide LABORATORY LOCATIONS

    AGL is one of the world’s most trusted name in diamond grading and gem identification. AGL ensures the integrity and accuracy of every report it issues.

REPORTS & SERVICES

AGL receives the widest variety of gemstones and fine jewelry articles for certification.

Diamond - Lab Services
DIAMONDS

Assessment of authenticity and quality for diamonds in the D-to-Z color range from AGL.

ColoredDiamonds - Lab Services
FANCY COLOR DIAMONDS

Assessment of color origin and quality based on agl’s color grading system for diamonds outside the D-to-Z range.

Synthetic - Lab Services
EMERALD

AGL focus on testing colored gemstones, especially on treatment detection, origin determination and color grading of emeralds.

ColoredStones - Lab Services
COLORED STONES

Confirmation of a gemstone’s identity and characteristics through a full gemological examination.

pearl - Lab Services
PEARLS

Documentation of the specific attributes of pearls and pearl jewelry, including mollusk type and growth environment.

Unknown - Lab Services
UNKNOWN

Let AGL gemologists do the detective work to reveal the identity of your material.

The 4Cs of diamond

The worldwide standard for evaluating diamond quality.

DIAMOND COLOR

Diamond Color Actually Means Lack of Color

DIAMOND CUT

A Diamond’s Cut Unleashes Its Light

DIAMOND CLARITY

Diamond Clarity Refers to the Absence of Inclusions and Blemishes

CARAT WEIGHT

Diamond Carat Weight Measures a Diamond’s Apparent Size

Testimonials

FILAN FISTEKU

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ULLAMCORPER FILAN

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SCELERISQUE AUGUE

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Report Check

AGL Report Check is available for all AGL reports, providing you with an additional level of assurance. With Report Check, you can quickly and conveniently confirm that the information on your report matches what is archived in the AGL report database.

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