GCI Gemological Centers • Diamond & Gemstone Certification Services
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Gemological Laboratory & Certification

Precision Grading. Uncompromising Authenticity.

GCI Gemological Centers provides professional grading, gemstone identification, and jewelry appraisal reports designed to support trade and consumer confidence.

Angled diamond held by precision gemological laboratory tweezers
Gemological AnalysisScientific Evaluation
Report AuthenticityVerification Support
Comprehensive ReportsDiamond & Gemstone Grading
Standardized MethodologyIndustry Accepted Scales
About GCI Gemological Centers

Professional Gemological Assessment and Certification

GCI Gemological Centers provides comprehensive evaluation services for diamonds, colored gemstones, and fine jewelry. Our laboratory focuses on delivering accurate reports that reflect recognized gemological standards.

Every item submitted to our laboratory is examined using standardized methodologies to identify gemstone species, assess quality characteristics, and verify report data.

Our Laboratory Focus

  • Diamond Assessment: Detailed analysis of Carat Weight, Color Grade, Clarity Grade, and Cut proportions.
  • Gemstone Identification: Determination of gemstone variety, physical properties, and notable characteristics.
  • Jewelry Documentation: Identification and documentation of mounted diamonds, gemstones, and precious metals.

Laboratory Offerings

Gemological Services

Reliable reporting and verification solutions for consumers and jewelry professionals.

Diamond Grading Reports

Systematic assessment of diamond quality factors, including carat weight, color, clarity, and cut proportions.

Gemstone Identification

Laboratory analysis to identify precious and semi-precious colored gemstone varieties and characteristics.

Jewelry Reports

Evaluation and documentation of finished jewelry items, recording metal details and mounted gemstone attributes.

CLIENT EXPERIENCES

Trusted by the Jewellery Industry

Two decades of trust, precision and confidence in gemological certification.

Representative of Neha Creations, long-standing GCI gemological certification partner
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Neha Creations

20 Years of Trust

“We have been associated with GCI for the past 20 years, and our experience has been consistently excellent. Their certifications have always been accurate, and they have upheld the highest standards of integrity in international diamond laboratory testing...”

— Neha Creations
Sri. Praveen Kumar, Owner of Sri Balaji Jewellers, Hyderabad
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Sri Balaji Jewellers

Confidence in Every Certification

“GCI India has been an trusted partner for Sri Balaji Jewellers. Their certification process is fast, accurate, and gives our customers complete confidence in the authenticity and quality of our jewelry...”

— Sri. Praveen Kumar

Owner, Sri Balaji Jewellers, Hyderabad

Have a GCI Certificate to Verify?

Use our central verification portal or contact our laboratory registrar for assistance.