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http://dx.doi.org/10.6111/JKCGCT.2022.32.4.159

Current status of gem-quality laboratory-grown diamond  

Choi, Hyun-min (Hanmi Gemological Institute & Laboratory (HGI, GIG))
Kim, Young-chool (Hanmi Gemological Institute & Laboratory (HGI, GIG))
Seok, Jeong-won (Department of Electrical and Electronic Materials Engineering, Dongshin University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.32, no.4, 2022 , pp. 159-167 More about this Journal
Abstract
In the past few decade years, laboratory-grown diamonds, also known as synthetic diamonds usually, have become more and more prosperous in the global diamond market. There are two main crystal growth processes of the gem-quality laboratory-grown diamond, the high pressure and high temperature (HPHT) and chemical vapor deposition (CVD). Synthetic gem diamonds grown by the HPHT press have been commercially available since the mid-1990s. Today, significant amounts of gem-quality colorless HPHT laboratory-grown diamonds have been producing for the jewelry industry. In the last several years, the CVD laboratory-grown diamonds have been gaining popularity in the market. In 2021, the CVD production rose and there are expectations that the trend would move upward continuously. This article presents information about the current status of laboratory-grown diamonds, lower cost compared to natural diamonds, market share, color distribution, spectroscopic properties of laboratory-grown diamonds, and so on.
Keywords
Gem-quality; Laboratory-grown diamond; HPHT; CVD; Production;
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