Expert Gem Grading Services

Precision grading and identification for gems and diamonds

Gem Grading

Accurate assessments by skilled gemologists.

State-of-the-art imaging technology used.

Reliable sorting and identification services.

Diamond Certification
Consultation Services

Discover Our Precision Gem Services

At pggl, we combine advanced imaging technology with expert gemology to ensure accurate grading and identification of gemstones and diamonds for both the industry and consumers.

Close-up of a gemstone being meticulously examined by a gemologist under bright lighting.
Close-up of a gemstone being meticulously examined by a gemologist under bright lighting.

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Trusted by Experts

Quality Assurance

Expert Gem Services

Precision grading and identification for gems and diamonds.

Grading Services
A close-up of a diamond being examined under a microscope.
A close-up of a diamond being examined under a microscope.

Accurate grading by expert gemologists using advanced technology.

A collection of various gemstones displayed on a velvet surface.
A collection of various gemstones displayed on a velvet surface.
A professional gemologist analyzing a gemstone with specialized tools.
A professional gemologist analyzing a gemstone with specialized tools.
Identification Services

Identifying gems with precision to ensure authenticity and quality.

Sorting services for gems to meet industry standards.

Sorting Services

Gem Gallery

Explore our exquisite collection of graded gems.

A close-up of a sparkling diamond on a velvet surface.
A close-up of a sparkling diamond on a velvet surface.
An array of colorful gemstones displayed in a wooden box.
An array of colorful gemstones displayed in a wooden box.
A gemologist examining a gemstone under a magnifying glass.
A gemologist examining a gemstone under a magnifying glass.
A beautifully lit showcase featuring various cut gems.
A beautifully lit showcase featuring various cut gems.
A hand holding a radiant ruby against a neutral background.
A hand holding a radiant ruby against a neutral background.
A selection of raw gemstones scattered on a textured fabric.
A selection of raw gemstones scattered on a textured fabric.
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Learn about gem identification, diamond grading certificates, light behavior, digital fingerprinting, ImaGem technology and how PGGL’s certification is different from traditional labs.