GSI BECOMES FIRST GEMOLOGICAL LABORATORY TO JOIN THE PLUMB CLUB – READ | AS SEEN IN JEWELLERY BUSINESS – DIAMONDS: WHAT’S YOUR TYPE (BY ALETHEA INNS) – READ | NATURAL SELECTION: AN ARTICLE BY RAPAPORT ON DIAMOND-VERIFICATION SERVICES FOR UNDISCLOSED LAB-GROWN AND TREATED STONES – READ | GEMOLOGICAL SCIENCE INTERNATIONAL ACHIEVES GLOBAL ACCREDITATION AS VERIFIER OF SUSTAINABILITY RATED DIAMONDS – READ
Laboratory Services
GSI is a leading gemological lab offering a variety of gemological services worldwide. All that GSI is and all that it has accomplished started here. As the only major gem lab established in the 21st century, the company is uniquely equipped to address continually emerging and accelerating industry challenges.
Education
GSI firmly believes that trade and consumer education is critical to the long-term success of the diamond and jewelry industry. It also uses industry connections to promote communication and education programs for both the trade and consumers.
Research
GSI’s research department is at the forefront of the rapidly changing processes related to treatments of diamonds and gemstones, synthetic technologies, and many others. GSI openly shares research findings with others in the trade.
Verify Your Report
GSI grading reports are an objective and accurate analysis of a diamond’s 4Cs and more. They can be accessed any time from our secure database – a key benefit should you ever misplace it or its authenticity is questioned. Our efforts have resulted in grading certificates that give your peace of mind when making that most important purchase.
Virtual Vault
Virtual Vault ™ is an innovative new consumer security service created by Gemological Science International (GSI) to protect your GSI Grading Report – providing permanent storage of your Grading Report (also known as GSI Certificate). It guarantees you anytime access to its contents and other important benefits.
About GSI
We at GSI have a vision: to create a modern, state-of-the-art diamond grading lab that takes advantage of the latest breakthroughs in diamond grading. To do this, we reengineered the diamond grading process and founded it on foolproof cutting-edge technology, state-of-the-art software and automation, which reduces the chances of human error.
Latest Social Media
GSI's Latest Press
GSI Becomes the First Gemological Laboratory to Join The Plumb Club
Gemological Science International (GSI), one of the largest gemological organizations in the world, announced today its new membership in The Plumb Club, becoming the first-ever gemological laboratory to be invited to join.
Diamonds- What’s Your type? (Featured in Jewellery Business Magazine
Human beings love to classify and categorize items—and for good reason! This type of organization helps us better understand common attributes of things and simplify complex data. Gemstones, of course, are no different.
Natural Selection: An Article by Rapaport on Diamond-Verification Services...
