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International Gemological Institute
Serving the industry with diamond, gem and jewelry grading, education and appraisals since 1975
One of the World’s Largest Independent Grading and Accreditation Services Providers
The International Gemological Institute (IGI) has 20 laboratories and 14 education facilities in major diamond and jewelry centers around the world. IGI provides natural and lab grown diamond reports, colored stone grading, origin reports, and appraisal reports.
A team of experienced gemologists uses advanced equipment to analyze and describe each diamond’s features and cut quality.
IGI’s team of 650+ gemologists provides grading, appraisal, identification, origin, and laser inscription services globally. Education is offered through IGI’s Schools of Gemology with diploma certification.
Diamonds are graded for color (D–Z scale), fluorescence, and clarity (IF to I3 scale). All characteristics are plotted on diagrams by expert gemologists using loupes and microscopes.
Services
IGI offers expert grading, education, and accreditation services globally.
Grading and Certification
IGI grades diamonds, gemstones, and jewelry in more locations worldwide than any other organization.
Learn moreWhy Choose Us
Best Diamond Website Design & Development
A professional diamond website serves as the digital showcase for your business, highlighting the quality, authenticity, and brilliance of your gemstones.
Gone are the days when jewelry shopping meant spending countless hours at numerous brick-and-mortar stores, constrained by limited stock. Today, the surge in online shopping has revolutionized the experience, allowing consumers to purchase jewelry with just a few clicks.
With vast expertise in jewelry website design, e-commerce store development, and internet marketing (SEO) for jewelry stores across diverse regions, we specialize in crafting custom jewelry websites.
Our meticulously crafted jewelry website development services will set you apart from your competitors, attract new customers, increase sales, and significantly enhance your bottom line.
We don't just help you sell products; we help you build lasting relationships with your customers. Every business has a story. Let yours shine brilliantly.
IGI Values
IGI’s value system is centered on objectivity, accuracy, consistency, and impartiality, ensuring that each diamond is evaluated according to strict industry standards and criteria without bias or influence.
Authenticity
IGI uses state of the art technologies to screen every gemstone, determining naturally mined, laboratory grown or simulant origin. Experienced graduate gemologists conduct further assessment in controlled conditions, detailing relevant gemological characteristics according to the strictest international system.
Confidence
IGI’s School of Gemology is the ultimate source for discovering the breathtaking world of diamonds, gemstones and jewelry. Whether you want to become a more confident buyer or an industry professional IGI offers the world’s most diverse array of courses in person or online via eLearning and webinars.
Collaboration
IGI instructs a wider variety of courses, provides a wider array of services, and grades a wider variety of gemstones and jewelry in more locations around the world than any other gemological organization. By acting globally while thinking locally we provide customized, world-class solutions in all of the many locations we serve.
ESG
IGI believes our industry must proactively engage in human and environmental stewardship. Every business has the power to respect all-inclusive cultural and gender diversity and minimize environmental impact.
IGI Diamond Grading Report
IGI Diamond Grading Reports are globally trusted documents that describe a diamond’s authenticity, quality, and characteristics. From the cut and color to clarity and carat weight, every factor is scientifically evaluated and reported with objectivity, consistency, and accuracy.
IGI Diamond ID Report
This report includes all the information provided in the Diamond Report, along with a laser inscription of a unique identification number on the diamond. The inscription helps to verify the authenticity and traceability of the diamond.