About Us - World Gemological Institute
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About Us

In 2016, WGI successfully moved their headquarters from Ramat Gan “Israeli Diamond Exchange” to a new, London based laboratory in the heart of the diamond district Hatton Garden.

 World Gemological Institute (WGI) is dedicated to providing the highest level of service and expertise to its clients, ensuring the integrity of the diamond, gemstone and jewellery industry. With its commitment to education, research, and certification, WGI is an invaluable resource for anyone interested in the world of gemstones.

Our Gemologists

All of our Gemologists are graduated from the Gemological Institute of America (GIA) and have many years of industry experience. Our staff is required to continually improve upon their education by regularly attending seminars, lectures and advanced gemological studies, including the coveted and highly regarded Fellowship (FGA) through the Gemological Association of Great Britain (Gem-A).

WGI is highly reputable in the diamond industry as well as jewellery manufacturers and retailers. We follow a conservative approach in our gradings providing reliable consistency in results to all our customers.


Our Mission

Our goal at WGI is to accurately identify, grade and evaluate diamonds, gemstones, pearls and jewellery; distinguish if they have been treated prior to your purchase, and determine the origin and authenticity.

Our laboratory applies the highest standards, using the most updated technology and qualified gemologists. WGI grading processes are updated according to the latest industry developments.

The standards of testing and the equipment utilised are in line with industry’s latest techniques. WGI continually invests in acquiring the highly innovative technological instruments for more precise and accurate gradings. We take great care with customer’s precious items and details with the high standard of integrity.


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