Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: ...

Only one in ten thousand diamonds has a noticeable fancy color outside of the subtle color range normally associated with colorless diamonds. Of the more than one million colored diamonds examined by ...

Director of GIA’s London Campus Mehdi Saadian discusses the modern gem and jewellery student and how how jewellers can ...

Reports from a reputable lab, such as The Gemological Institute of America (GIA), can add value to the stone because they are trusted for accuracy and consistency.” As a buyer, you’ll want to ...

As the global jewellery industry continues to react to the new tariffs imposed by US President Donald Trump, the Gemological Institute of America (GIA) has significantly changed its procedures.

(IDEX Online) - GIA says it US labs won't accept +4.0-cts, fancy color diamonds and certain other items from abroad until ...

Carlsbad, Calif., April 08, 2025 (GLOBE NEWSWIRE) -- A team of scientists from the Gemological Institute of America (GIA), collaborating with their colleagues from the Smithsonian National Museum ...