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International Gold And Diamond Gemology Testing Laboratory
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Diamond Shapes
Each diamond shape has its own unique personality and brilliance. Choose the one that speaks to your heart.
Brilliant Cuts
Round, Oval, Pear, Marquise, Heart, Princess, Cushion, Radiant
Step Cuts
Emerald, Asscher, Baguette, Tapered Baguette
Specialty Cuts
Trillion, Shield, Triangle, Old European Cut
The 4 C's of Diamonds
Understanding Cut, Color, Clarity, and Carat Weight - the universal standards for evaluating diamond quality.
Diamond Cut
The cut determines how well a diamond reflects light, affecting its brilliance and fire. A well-cut diamond maximizes light return, creating exceptional sparkle.
Excellent
Maximum brilliance and fire
Very Good
Superior light performance
Good
Excellent value with good brilliance
Diamond Color
Diamond color is graded from D (colorless) to Z (light yellow or brown). The less color, the higher the grade and value.
Diamond Clarity
Clarity refers to the absence of inclusions and blemishes. Most inclusions are invisible to the naked eye but affect the diamond's brilliance.
Diamond Carat Weight
Carat measures a diamond's weight, not size. One carat equals 200 milligrams. Larger diamonds are exponentially more rare and valuable.
Our Diamond Testing Services
Professional diamond testing and certification services with state-of-the-art equipment and expert gemologists.
Diamond Authentication
Verify the authenticity of your diamonds using advanced testing equipment and expert analysis.
- Real vs Synthetic Detection
- Natural Diamond Verification
- Treatment Identification
Diamond Grading
Comprehensive diamond grading following international standards (GIA, AGS, IGI).
- 4C's Analysis (Cut, Color, Clarity, Carat)
- Professional Certificate
- Detailed Report
Diamond Appraisal
Professional diamond appraisal for insurance, estate, or resale purposes.
- Insurance Appraisal
- Estate Valuation
- Resale Assessment
Advanced Analysis
In-depth diamond analysis using cutting-edge technology and expert examination.
- Inclusion Mapping
- Fluorescence Testing
- Proportion Analysis
Diamond Insurance
Protect your investment with comprehensive diamond insurance coverage.
- Full Coverage Protection
- Worldwide Coverage
- Quick Claims Process
Express Service
Fast-track diamond testing and certification for urgent requirements.
- 24-48 Hour Turnaround
- Priority Processing
- Express Shipping
Our Testing Process
Simple, secure, and professional diamond testing process that ensures accuracy and peace of mind.
Submit Your Diamond
Bring your diamond to our lab or use our secure shipping service. We provide insurance coverage for all items.
Initial Assessment
Our expert gemologists perform a preliminary examination to determine the appropriate testing protocol.
Advanced Testing
Using state-of-the-art equipment, we conduct comprehensive analysis including 4C's grading and authenticity verification.
Report Generation
We create a detailed report with professional certification and all testing results documented.
Secure Return
Your diamond is securely returned with the complete report and certificate, ensuring full documentation.
What Our Clients Say
Trusted by thousands of customers worldwide for professional diamond testing and certification.
"Exceptional service! They authenticated my grandmother's diamond ring and provided detailed documentation. Highly professional and trustworthy."
"Fast, accurate, and professional. Got my diamond graded for insurance purposes. The report was comprehensive and easy to understand."
"Outstanding expertise! They identified that my diamond was treated, which saved me from a costly mistake. Highly recommended!"
Certifications & Accreditations
Trusted by industry leaders and certified by international gemological institutions.
GIA Certified
Gemological Institute of America certified gemologists with advanced training in diamond grading and identification.
AGS Accredited
American Gem Society accredited laboratory with cutting-edge equipment for precise diamond analysis.
ISO 9001:2015
International quality management system certification ensuring consistent and reliable testing procedures.
International Recognition
Recognized by major diamond trading centers worldwide including Antwerp, New York, and Mumbai.
Frequently Asked Questions
Get answers to common questions about diamond testing and certification services.
How long does diamond testing take?
Standard diamond testing typically takes 3-5 business days. Express service is available for 24-48 hour turnaround. The exact time depends on the type of testing required and current lab volume.
What equipment do you use for testing?
We use state-of-the-art equipment including microscopes, spectrometers, thermal conductivity testers, and advanced imaging systems. Our lab is equipped with the latest technology for accurate diamond analysis.
Is my diamond safe during testing?
Absolutely. We provide full insurance coverage for all diamonds during testing. Our secure facility has 24/7 monitoring, and all diamonds are handled with extreme care by certified professionals.
What's included in a diamond certificate?
Our certificates include the 4C's (Cut, Color, Clarity, Carat), measurements, proportions, fluorescence, and a detailed plot of inclusions. We also provide high-resolution images and security features.
Can you test synthetic diamonds?
Yes, we can identify synthetic diamonds using advanced testing methods. We can distinguish between natural, synthetic, and treated diamonds with high accuracy.
Do you offer international shipping?
Yes, we provide secure international shipping with full insurance coverage. We work with trusted courier services and provide tracking information for all shipments.
Still have questions? Our experts are here to help!
Contact Our ExpertsExquisite Diamond Collection
Discover the brilliance and beauty of our premium diamond collection
Welcome To IGDGTL
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Certified & Accredited
ISO 9001:2015 and NABL accredited testing facility
Quick Turnaround
Fast and reliable report delivery within 24-48 hours
Quality Assured
Stringent quality control and accurate testing methods