Recent Posts About AGS Diamonds


How are diamonds evaluated?

April 11, 2017

On the matter of quality and thus the value of a cut diamond, the criteria are known as 4Cs they are Color, Clarity, Cut and Carat. Obviously, it helps to have apparatus like spectroscopes and spectrophotometers, stereomicroscopes, electric balances and also proportionscopes, but a knowledge of a basic technique enables a fairly accurate assessment of …

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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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