Editor’s Note
This article highlights a significant domestic milestone in South Korea’s materials science sector, with KDT Diamond achieving the first local production of gem-quality lab-grown diamonds. The breakthrough, resulting from sustained industry-academia collaboration, marks a notable step in the country’s advanced manufacturing capabilities.

KDT Diamond has succeeded for the first time in South Korea in producing gem-quality lab-grown (synthetic) diamonds. Through years of industry-academia collaboration with Professor Song Oh-sung’s team from the Department of New Materials at the University of Seoul, the company has finally established its own proprietary technology and equipment system. The first lab-grown diamond produced on December 31, 2021, successfully grew and processed a 1-carat diamond.
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The lab-grown diamonds produced by KDT Diamond use the CVD (Chemical Vapor Deposition) method, specifically a microwave plasma chemical vapor deposition process, resulting in high-quality, colorless, and transparent diamonds for jewelry. This is a more advanced method compared to the traditional HPHT (High-Pressure High-Temperature) technique, enabling the continuous production of high-grade lab-grown diamonds in a shorter time.

They are composed of the same elements as natural diamonds and possess identical physical and chemical properties. Even experts cannot distinguish them with the naked eye; they can only be identified using advanced equipment. Lab-grown diamonds are also superior in quality to natural diamonds and are environmentally friendly. Since they are produced using advanced equipment in urban areas, there is no environmental destruction or labor rights violations that can commonly occur in some diamond mines.
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