Welcome to JGTL Jaipur Gems Testing Lab
JGTL is Jaipur’s trusted gem testing laboratory for diamonds, gemstones, and jewellery certification. Our qualified gemologists use advanced gemological instruments to deliver precise, authentic, and internationally accepted reports. Whether for individual gems or complete jewellery, JGTL ensures accuracy and reliability in every test.
Learn MoreExpert Diamond & Gemstone Analysis
At JGTL, we specialize in testing and grading diamonds and colored gemstones based on cut, color, clarity, carat, treatments, and origin. Each certification report is backed by expert evaluation and modern gemological technology, providing confidence to buyers, sellers, and collectors.
Learn MoreJewellery Certification & Bulk Testing Services
JGTL offers comprehensive jewellery certification, from individual pieces to bulk testing for manufacturers, exporters, and retailers. Our detailed jewellery reports ensure transparency and trust, helping clients uphold quality assurance in every sale and export.
Learn MoreGemstone Report
Accurate testing and certification for all types of colored gemstones, including identification, origin, and treatment detection at JGTL Jaipur.
Diamond Report – Loose & Bulk
Professional diamond certification for single stones and bulk parcels, graded for cut, color, clarity, and carat with transparent evaluation.
Gemstone Jewellery Report
Detailed certification for gemstone jewellery—ensuring authenticity, enhancement detection, and quality verification by expert gemologists.
Diamond Jewellery Report
Comprehensive diamond jewellery certification with format reports featuring enlarged visuals, detailed grading, and professional presentation.
Verify Your JGTL Report
Precision and Integrity in Gem & Jewellery Certification
JGTL Jaipur combines advanced gemological instruments with expert analysis to deliver precise and trustworthy diamond, gemstone, and jewellery reports. Each certification is detailed, transparent, and internationally recognized for its accuracy.
- Comprehensive testing and grading of gemstones, diamonds, and jewellery.
- Detection of treatments and enhancements in gemstones and mounted jewellery.
- JGTL standard reports and bulk grading solutions for retailers and exporters.
Our Jaipur laboratory is fully equipped for both single-item and bulk certifications, providing unbiased, professional results trusted by jewellers, exporters, and collectors across India. JGTL upholds Jaipur’s legacy as the hub of authentic gemstone expertise.
Our Features
JGTL is equipped with advanced gemological instruments and skilled experts to deliver comprehensive and reliable gemstone and jewellery certifications for every requirement.
Accurate Gemstone Identification
JGTL specializes in the precise identification and classification of colored gemstones — natural, synthetic, or treated — ensuring confidence and authenticity in every report.
- Advanced microscopic, spectroscopic, and gemological testing methods.
- Detection of origin, treatments, and enhancements included.
- JGTL certificates trusted by jewellers, traders, and collectors worldwide.
Diamond Certification and Grading
JGTL provides precise certification for loose diamonds and bulk parcels, graded for cut, color, clarity, and carat weight — meeting international standards of accuracy and reliability.
Our detailed diamond reports offer transparent, data-backed insights to empower jewellers, traders, and investors with confidence in every transaction.
Gemstone & Diamond Jewellery Certification
JGTL offers reliable certification for all types of jewellery — including solitaires, multi-stone creations, and gemstone-studded designs — with detailed grading and treatment analysis.
- Certified using internationally accepted grading parameters.
- Comprehensive reports suitable for both professional and retail purposes.
- Ensures transparency, authenticity, and buyer confidence in every piece.
Detailed A3 Diamond Jewellery Reports
JGTL’s A3 diamond jewellery reports provide large-format certification with enhanced grading details, clarity charts, and visual diagrams — ideal for exhibitions, auctions, and premium clients.
Recognized for precision and presentation, JGTL’s A3 certification sets a benchmark for professional diamond jewellery documentation in Jaipur and across India.