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important limitations All Report Check information is subject to these limitations. Interested in getting your diamond graded by GIA? Submit Your Gem Now

Whether examining the laboratory-grown diamonds submitted for grading reports, growing CVD diamonds at our research facility in New Jersey, or altering these materials through …

Jun 2, 2025 · The revised GIA description system for laboratory-grown diamonds will confirm that the submitted item is a laboratory-grown diamond and whether it falls into one of two …

GIA Laboratory DMCC is located in the important global diamond center of Dubai and will provide diamond services with limited capacity. Laboratory Service Hours

A Study of the Winston Red: The Smithsonian’s New Fancy Red Diamond Presents the first scientific and historical study conducted on the 2.33 ct Winston Red, the fifth-largest known …

This framework is both a way to better understand your diamond, and to ensure accuracy in the evaluation of your diamond’s unique characteristics. It is the best way to ensure clear …

Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface. Diamond’s crystal structure is …

May 22, 2025 · Because phosphorescence is so rare in natural stones, any diamond that exhibits this glow warrants further analysis to determine its origin. While not conclusive on its own, …

The GIA iD100® combines advanced spectroscopic technology with GIA's 60 years of diamond and gemstone identification research to distinguish natural diamonds from laboratory-grown …