Diamond Jewellery • Metal Purity Testing

Trusted Lab for Diamond Jewelery & Precious Metal Testing.

ICGJ specializes in diamond jewellery authentication and precise purity testing for gold, silver, and platinum, backed by transparent reporting and expert gemologists.

Verify Certificate Explore Services
Gemstone & Jewellery Lab
Secure Verification
ICGJ Lab
Trusted by jewellers & collectors

Verify your ICGJ report

Instantly validate the authenticity of any ICGJ certificate using the report number provided on your document.

Need help? Reach out to our verification desk for support.

Certification & Lab Services

Comprehensive reporting for gemstones, diamonds, and jewellery pieces.

Diamond Jewellery Testing

Professional testing and verification for diamond jewellery authenticity and quality.

Precious Metal Purity Testing

Accurate purity assessment for gold, silver, and platinum jewellery.

The ICGJ certification process

Every report is generated by qualified gemologists using multi-step verification and peer review.

1
Intake & Documentation

Secure intake, high-resolution imaging, and stone mapping.

2
Lab Analysis

Advanced testing with spectroscopy, microscopy, and grading tools.

3
Report & QR Verification

Digitally signed report with secure QR verification and archive.

10K+

Certified Stones

24-48h

Average Turnaround

98%

Client Retention

Global

Trade Acceptance

ICGJ Laboratory

About International Certified Gems & Jewellery

ICGJ is a modern gemological laboratory in Jaipur, delivering internationally recognized certification for gemstones and jewellery. Our lab combines expert gemologists, transparent reporting, and advanced instrumentation for dependable results.

  • Multi-parameter testing and grading
  • Secure report archive with verification
  • Ethical, unbiased appraisal standards

Connect with ICGJ

Talk to our certification team for submissions, pricing, and report support.

Head Office

Shop No. 36, Dhadda House, 1385, Partaniyon Ka Rasta, Johri Bazar, Jaipur-302003

Email

Kunalsomani95@gmail.com

Phone

9509660061

Working Hours

Monday - Saturday: 10:00 AM - 7:00 PM • Sunday: Closed