GII offers comprehensive laboratory services for gemstones and diamonds:
Professional diamond grading reports using international standards (GIA, CIBJO). Assessment of cut, color, clarity, and carat weight.
Identify natural, synthetic, and treated gemstones. Complete gemological analysis for rubies, sapphires, emeralds, and other precious stones.
Advanced analysis to identify heat treatment, irradiation, fracture filling, coating, and other enhancements on gemstones.
Scientific determination of geographical origin for rubies, sapphires, and emeralds using spectroscopic analysis.
Advanced identification of synthetic diamonds (CVD, HPHT) using cutting-edge D-Vision Pro technology.
Distinguish diamonds from simulants like cubic zirconia, moissanite, YAG, and other diamond imitations.
Gemstone and diamond analysis for studded jewelry pieces without unsetting stones.
GII’s laboratory is managed by India’s most experienced and qualified professionals:
This expert team ensures that every gemstone and diamond tested at GII receives the highest level of scientific analysis and professional certification.
GII is the only gem testing trade laboratory in India with a full-fledged research center approved by the Department of Science & Technology, Government of India as a SIRO (Scientific and Industrial Research Organization) Laboratory. This unique recognition establishes GII as India’s premier gemological testing and research facility.
Testing Services Scope:GII maintains strict protocols to ensure unbiased, objective analysis:
Client information is masked within the laboratory software system.
Each item receives a unique bar-coded label with an internal identification number.
Items are tracked throughout the laboratory process using the unique identification number.
Total objectivity is maintained across testing divisions.
Professional gemmologists and scientists conduct thorough analysis using sophisticated instruments.
Multiple checks ensure accuracy of findings and consistency with international standards.
Comprehensive certification report is issued and gemstones are returned securely with official documents.
Diamond grading typically takes 3-5 business days depending on the complexity of the analysis and current volume. Express services may be available upon request.
Yes. GII's diamond grading reports are recognized and accepted internationally by diamond traders, jewellers, exporters, insurance companies, and gemological organizations worldwide.
Yes. GII has advanced equipment including D-Vision Pro for detecting lab-grown diamonds (CVD and HPHT). This is one of our specialized services.
Diamond grading costs vary based on stone weight, complexity, and services required. Please contact us at +91-8828889230 or marketing@giionline.com for a quote.
Yes. GII can test gemstones in studded jewellery pieces without removal. Our advanced instruments allow safe analysis of mounted stones.
GII tests all types of gemstones including diamonds, rubies, sapphires, emeralds, and hundreds of other precious and semi-precious stones. We also identify synthetic and treated gemstones.
Yes. GII provides origin certification for gemstones like rubies, sapphires, and emeralds using advanced instruments.
You can visit our laboratory or contact us to discuss your specific requirements. We handle submissions from individual customers, jewellers, exporters, and institutions.
GII’s laboratory is managed by India’s most experienced and qualified professionals:
This expert team ensures that every gemstone and diamond tested at GII receives the highest level of scientific analysis and professional certification.
GII is the only gem testing trade laboratory in India with a full-fledged research center approved by the Department of Science & Technology, Government of India as a SIRO (Scientific and Industrial Research Organization) Laboratory. This unique recognition establishes GII as India’s premier gemological testing and research facility.
Testing Services Scope:
GII maintains strict protocols to ensure unbiased, objective analysis:
This rigorous process ensures complete objectivity and the highest level of professional certification.
Diamond grading typically takes 3-5 business days depending on the complexity of the analysis and current volume. Express services may be available upon request.
Yes. GII’s diamond grading reports are recognized and accepted internationally by diamond traders, jewellers, exporters, insurance companies, and gemological organizations worldwide.
Yes. GII has advanced equipment including D-Vision Pro for detecting lab-grown diamonds (CVD and HPHT). This is one of our specialized services.
Diamond grading costs vary based on stone weight, complexity, and services required. Please contact us at +91-8828889230 or marketing@giionline.com for a quote.
*Yes. GII can test gemstones in studded jewellery pieces without removal. Our advanced instruments allow safe analysis of mounted stones.
GII tests all types of gemstones including diamonds, rubies, sapphires, emeralds, and hundreds of other precious and semi-precious stones. We also identify synthetic and treated gemstones.
Yes. GII provides origin certification for gemstones like rubies, sapphires, and emeralds using advanced instruments.
You can visit our laboratory or contact us to discuss your specific requirements. We handle submissions from individual customers, jewellers, exporters, and institutions.
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