10/06/2025
GIA's services for laboratory-grown diamonds are getting an important update 💎 In Q3, GIA will adopt new descriptive terms for characterizing laboratory-grown diamonds, replacing the traditional 4Cs nomenclature that was designed for natural diamonds.
“Similar to other man-made gem materials, we anticipate the continued acceptance and popularity of laboratory-grown diamonds,” said Tom Moses, GIA executive vice president and chief laboratory and research officer. “More than 95% of laboratory-grown diamonds entering the market fall into a very narrow range of color and clarity. Because of that, it is no longer relevant for GIA to describe man-made diamonds using the nomenclature created for the continuum of color and clarity of natural diamonds.”
Read the full press release here: https://bit.ly/3Zdg5qB