HPHT Diamonds

【Tokyo, Japan】Information | The Onslaught of Synthetic Diamonds, Research Institutions Respond Strategically

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Editor’s NoteThis article discusses HPHT (High Pressure High Temperature) treatment, a process used to enhance the color grade of natural diamonds….

【USA】Some Created Diamond Sellers Want to Make “As-Grown” a Thing

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Editor’s NoteThis article examines a pivotal shift in the lab-grown diamond industry, driven by new grading standards from major gemological…

The Growth Processes of HPHT and CVD Diamonds: Manufacturing Lab-Created Diamonds

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Editor’s NoteThis article explores the evolution of lab-created diamonds, drawing on decades of GIA research. While chemically similar to natural…