
Natural selection: An article by Rapaport on diamond-verification services for undisclosed lab-grown and treated stones
With the rise of undisclosed lab-grown and treated stones, jewelers are turning to diamond-verification services to avoid misleading their customers. Image: Cayen Collection When consumers buy natural diamonds, they’re trusting the seller to offer them an authentic product that...

GSI Becomes 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 the prestigious organization. "GSI is thrilled to become...

Gemological Science International Achieves Global Accreditation as Verifier of Sustainability Rated Diamonds
Gemological Science International (GSI), one of the largest gemological organizations in the world, achieved SCS Global Gem Identification Verification Provider accreditation for its laboratories and offices around the world. All SCS-007 certified diamonds that are graded, scanned, and laser inscribed...

Gemological Science International Launches ASSURANCE by GSI™
Gemological Science International (GSI), the leading gemological organization for major U.S. jewelry retailers, announced today the official launch of its new Assurance by GSI™ – a multi-faceted solution that offers various services for retailers. The new initiative includes an e-commerce...

GSI inaugurates its new lab in Jaipur, India
GSI Jaipur Team in the reception lounge A gem testing laboratory of Gemological Science International (GSI) was inaugurated on 12 August 2021 in the premises of Rajasthan Chamber Bhawan of Commerce and Industry (RCCI). The chief guest of the inaugural...

Brides: A Complete Guide to Diamond Clarity
GSI President Debbie Azar gives an expert take on diamond clarity. PHOTO BY LYNN DUNSTON By Brides - https://www.brides.com/diamond-clarity-chart-5192329 If you’ve dabbled with the idea of a diamond engagement ring, you’re no doubt well-acquainted with the 4Cs: cut, carat, color, and...