Recent Posts About HPHT Processing


Identify diamond treatments

October 20, 2018

Technologies for diamond treatments The treatment used to improve the appearance of natural diamonds include laser drilling, typically followed by acid treatment, to remove the black inclusions; the filling of large surface-reaching fractures with high-refractive-index glass; and color enhancement by various procedures. Two of the most important developments in the decade are: * A new type …

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What is HPHT( High Pressure High Temperature) diamonds or HPHT process?

March 7, 2017

While the industry‚Äôs primary concern was the transformation of brownish diamonds into colorless stones, a number of yellow, yellow-green, and greenish-yellow High Pressure High Temperature (HPHT) treated diamonds were also introduced. These stones sparked less of a furor because their color was distinctive enough to raise questions, and could be readily identified by a major …

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