Published on the Italian Gemological Review, issue N°8, Jan 2020
Far from abandoning the top of the ranking of the most popular topics, the problem…
Published on the Italian Gemological Review, issue N°5, Sep 2018
There are two vibrational spectroscopy techniques successfully used since years in gemology: the Raman and…
Published on the Italian Gemological Review, issue N°3, Jan 2018
In 1999, General Electric (GE) announced that it had developed a high-pressure/high-temperature (HPHT) treatment to…
Published on the Italian Gemological Review, issue N°2, Sep 2017
One of the essential requirements of gemological analysis is that the gemstones should not be…
Published on the Italian Gemological Review, issue N°1, May 2017
UV-Vis-NIR (Ultra Violet-Visible-Near Infrared) Spectroscopy allows to analyse the interaction between matter and electromagnetic radiation…