GSI Gemology News

GSI Diamond Certification-usa
028

INCLUSIONS: A DEEP LOOK INSIDE NATURAL AND LAB GROWN DIAMOND CHARACTERISTICS

By Maria Mrozek, Senior Gemologist GSI One of fascinating features which gemologists are observing in diamonds, both natural and laboratory grown, are inclusions. Inclusions are imperfections within a diamond that are result of different events during formation of natural and...

Read more
Volcanic eruption creates

Geological origin of Natural Diamonds

About Diamond Diamond is a mineral composed of mainly of pure carbon, and the arrangement of carbon atoms within the crystal is almost perfectly symmetrical. Gem quality diamonds are typically 99.95% carbon and can be up to 99.99% pure. This...

Read more
Lab ami

Gemological Science International Opens New Laboratory in Jaipur India, Expanding Global Footprint

NEW YORK – April, 2021 – Gemological Science International (GSI), one of the largest gemological organizations in the world, announced the opening of its newest laboratory in Jaipur, India. The Jaipur laboratory will offer all GSI’s core services. The new...

Read more
gsi labgrown natural

Natural Diamonds: An “Intruder” in the Laboratory-Grown Supply Chain

Debbie Azar, President and Co-founder of Gemological Science International (GSI): Last May, I wrote a Memo about the need for full disclosure on grading reports issues by gemological laboratories when it comes to post-growth treatments of laboratory-grown diamonds. That has...

Read more
Load More
Select your currency
USDUnited States (US) dollar
EUR Euro