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Research & News
RESEARCH NEWS
Freshwater Pearls vs. Saltwater Pearls: Understanding the Difference
Learn the key differences among freshwater, Akoya, Tahitian and South Sea pearls, including how they’re formed, their colors, sizes, luster and value.
RESEARCH NEWS
The Transformation of Diamond Cut Quality Grading: Where Are We Now?
Explore the evolution of diamond cut grading and future innovations.
RESEARCH NEWS
G&G in a Flash: Guide to Phenomenal Gems
Discover the science behind some of the most popular phenomenal gemstones.
RETAILER RESOURCE
Freshwater Akoyas - a Trending Misnomer for Certain Freshwater Pearls
Small, bead-nucleated freshwater pearls marketed as “akoyas” could cause confusion and mislead consumers.
RETAILER RESOURCE
How GIA Analyzes Pearls from Start to Finish
Easy, step-by-step guide to how GIA analyzes pearls in its laboratory.
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RESEARCH NEWS
Enumerating Diamond Cuts
Discover the hidden math behind diamond cuts and how experts map every possible faceting pattern.
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