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Gemstone Testing & Certification

Professional Gemstone Testing & Certification

Professional gemstone testing and certification services using advanced gemological equipment and international standards for accurate identification and grading.

KB Global Refinery Gemstone Testing & Certification
Certified Gem Lab
1000+Gemstones Tested
15+Years Experience
98%Accuracy Rate
24hrsTurnaround Time
Our Services

Comprehensive Gemstone Testing Services

Our testing services cover all aspects of gemstone identification, grading, and certification.

Diamond Grading

Professional diamond grading services using the 4Cs (Cut, Color, Clarity, Carat) with certified reports.

4Cs AnalysisCertified ReportsDiamond Identification

Colored Gemstone Identification

Expert identification and classification of colored gemstones including ruby, sapphire, emerald, and more.

Species IdentificationVariety ClassificationOrigin Determination

Microscopic Analysis

Advanced microscopic analysis for inclusion identification and internal feature examination.

Inclusion StudyInternal FeaturesTreatment Detection

Weight & Measurement

Precise weight measurement and dimension analysis for accurate gemstone valuation.

Accurate WeighingDimension AnalysisProportion Assessment

Visual Inspection

Comprehensive visual inspection for color evaluation, transparency, and overall quality assessment.

Color GradingTransparency CheckQuality Assessment

Certification Services

Official certification reports with detailed analysis and authentication of your gemstones.

Certified ReportsAuthenticationDetailed Analysis
Gemstones We Test

Wide Range of Gemstones

We test and certify a wide variety of precious and semi-precious gemstones.

Diamond
Ruby
Sapphire
Emerald
Amethyst
Topaz
Garnet
Tourmaline
Certification Types

Professional Certification Reports

We provide various types of certification reports to meet your specific needs.

Diamond Grading Report

Comprehensive analysis including 4Cs, proportion analysis, and clarity characteristics.

Colored Stone Report

Detailed identification, origin determination, and quality assessment for colored gemstones.

Treatment Report

Identification and documentation of any treatments or enhancements present.

Insurance Appraisal

Official appraisal report for insurance and valuation purposes.

Our Process

The Testing Process

Our testing process ensures accurate and reliable results for every gemstone.

01

Consultation

We discuss your gemstone testing requirements and certification needs.

02

Visual Inspection

Initial visual examination and assessment of the gemstone.

03

Advanced Testing

Scientific testing using specialized gemological equipment.

04

Analysis & Grading

Comprehensive analysis and grading based on international standards.

05

Certification

Official certification report with detailed findings and authentication.

06

Delivery

Secure delivery of the gemstone with the official certification report.

Benefits

Why Choose Our Testing

Our gemstone testing services offer numerous benefits for clients across the industry.

Accurate gemstone identification
Certified laboratory reports
Expert gemologists
International standards
Fast turnaround times
Confidentiality guaranteed
Comprehensive analysis
Trusted certification
Gemstone Testing Benefits
CertifiedGemological Lab

Need Gemstone Testing & Certification?

Contact our team of expert gemologists today to discuss your testing requirements.