June 2026
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In today’s market, a diamond supplier is part of your risk chain, your reputation chain, and your customer-confidence chain — not just a vendor.
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The US Campus of IIG India · Est. 1965
The art and science ofprecious stones
125,000+ gemologists trained over 60 years at IIG India. The same curriculum, faculty, and world-class specimen collection — now training the next generation in America.
60+
Years Heritage
100K+
Alumni
3
Disciplines
1965
Founded in Mumbai
The Story Behind IIG America
60 Years. 125,000Professionals. Now, America.
In 1965, a single classroom in Mumbai changed the gem trade forever. Kantilal Desai founded the International Institute of Gemology with one conviction: diamonds and gemstones deserved the same scientific rigor as any other discipline.
Industry Expertise
Decades of experience delivering world-class gems and jewellery education with globally recognized standards.
Modern Learning Facilities
Advanced laboratories, practical training, and industry-focused resources designed for real-world learning.
Expert Mentors
Learn from experienced professionals who bring real industry knowledge into every classroom.
Our Collaborations
Global Standards. Local Delivery.
IIG’s global collaborations shape every course we teach in America.
Gem-A
Gemmological Association of Great Britain
Founded in 1908, Gem-A is the oldest gemmology education provider in the world. IIG has been an Accredited Teaching Centre for decades, giving students internationally respected education pathways.
- Internationally recognized certification pathways
- Shared curriculum development
- Faculty exchange programs
- Joint gemstone research
De Beers Institute of Diamonds
Delivery Partner
Through our partnership with the De Beers Institute of Diamonds, IIG courses reflect the world's highest standards in diamond education and grading.
- De Beers curriculum
- Diamond grading standards
- Rough diamond methodology
- Industry research access
Gemewizard
Color Grading Technology
Students learn the same color communication technology trusted by international gem laboratories and leading jewellery brands.
- Professional color grading
- Industry-standard software
- International color language
- Real trade applications
IBJA
India Bullion & Jewellers Association
Connecting students to India's largest jewellery trade network, offering valuable industry exposure and mentorship.
- Trade network
- Market insights
- Mentorship
- Industry events
3.0 University
Academic Partner
Blending innovative education models with practical gemological learning to prepare students for the future.
- Blended learning
- Digital curriculum
- Academic pathways
- Innovation
Gem-A
Gemmological Association of Great Britain
Founded in 1908, Gem-A is the oldest gemmology education provider in the world. IIG has been an Accredited Teaching Centre for decades, giving students internationally respected education pathways.
- Internationally recognized certification pathways
- Shared curriculum development
- Faculty exchange programs
- Joint gemstone research
De Beers Institute of Diamonds
Delivery Partner
Through our partnership with the De Beers Institute of Diamonds, IIG courses reflect the world's highest standards in diamond education and grading.
- De Beers curriculum
- Diamond grading standards
- Rough diamond methodology
- Industry research access
Gemewizard
Color Grading Technology
Students learn the same color communication technology trusted by international gem laboratories and leading jewellery brands.
- Professional color grading
- Industry-standard software
- International color language
- Real trade applications
IBJA
India Bullion & Jewellers Association
Connecting students to India's largest jewellery trade network, offering valuable industry exposure and mentorship.
- Trade network
- Market insights
- Mentorship
- Industry events
3.0 University
Academic Partner
Blending innovative education models with practical gemological learning to prepare students for the future.
- Blended learning
- Digital curriculum
- Academic pathways
- Innovation
Our Courses
Three Disciplines. One Global Standard.
Every course at IIG America is built on the same curriculum spine used at IIG India — adapted for US learners, US employers, and US career paths.
6 Weeks – 12 MonthsGemology
Identify, grade, and evaluate precious and semi-precious gemstones. Hands-on training with thousands of specimens from our teaching collection.
Learn More→2 Weeks – 12 MonthsDiamond Grading
Master the 4Cs — Cut, Color, Clarity and Carat. Learn industry grading standards including natural and lab-grown diamond identification.
Learn More→
4 Weeks – 18 MonthsJewellery Design
Develop original collections, master industry CAD tools, and understand manufacturing end-to-end — for designers, retailers, and entrepreneurs.
Learn More→1965
Founded in Mumbai
60+
Years of Excellence
125K+
Professionals Trained
100+
Courses & Programs
Why IIG America
Built for working professionals and career-changers.
The American gem and jewelry market is the largest in the world — and it rewards precision. Our courses are designed to produce graduates who can grade a stone, cost a piece, and advise a customer from day one.
Internationally recognized qualifications
Expert faculty from the jewellery industry
Career-focused practical learning
Industry-Recognized Diplomas
Our curriculum is shaped with Gem-A (UK), De Beers Institute of Diamonds, and IBJA — the same standards IIG has trusted globally for over 60 years.
Taught by Practicing Professionals
Faculty include appraisers, diamond graders, and designers who actively work in the trade, bringing real-world expertise into every classroom.
Built for Real Careers
Placement support, resume guidance, and an employer network spanning leading jewelry brands and independent retailers.
Global Heritage, US Delivery
Backed by an institute that has trained over 100,000 professionals since 1965, now delivering world-class education in the United States.
Graduate Outcomes
Real careers, built here.
“The hands-on lab work with real colored stones made everything click. Within a month of graduating I was grading for a Fifth Avenue retailer.”
Sarah Chen
Staff Gemologist · New York
“IIG’s diamond curriculum — especially the lab-grown identification module — gave me the edge in an increasingly complex market.”
Marcus Williams
Diamond Trader · Los Angeles
“I went from zero CAD experience to running my own boutique line. The design faculty pushed me to develop a point of view, not just technique.”
Elena Rodriguez
Jewelry Designer · Miami
Resources
Blog & Articles
Stay updated with latest trends, knowledge and institute news.
Campuses
One institute.A worldwide network.
Hands-on lab work is essential to gem and diamond training — join in person at any campus in our global network, or learn online from anywhere in the US while our New York campus grows.
International Campuses
Start Your Journey
Become A ProfessionalGem Expert
Fill out the enquiry form and our admission team will contact you with course details and guidance.
Phone
(929) 500-1421
+1 (929) 500-1421
admissions@iigamerica.com
info@iigamerica.com
Office Hours
Monday – Saturday
9:00 AM – 6:00 PM (Local Time)