Treatment - IGR - Italian Gemological Review

Home Glossary Treatment

Treatment: a process that alters the appearance and/or chemical properties and/or physical properties of a gem. Types of treatment are:

resulting in color modification: heating, diffusion and irradiation
that change the homogeneity: fissure filling with oils or colorless resins

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IGR (Rivista Italiana di Gemmologia/Italian Gemological Review) è la rivista gemmologica internazionale italiana, nata nel 2016 da Gem-Tech con l’obiettivo di sviluppare in Italia un network informativo per Gemmologi e per professionisti quotidianamente impegnati nel settore delle pietre preziose.

IGR – Rivista Italiana di Gemmologia, the Italian Gemological Review, is the leading International Gemological Magazine in Italy masterminded by Gem-Tech Gemological Institute, a broad information framework for Gemologists as well as professionals involved daily in the gemstone business.

Testata registrata al Tribunale di Napoli, reg. n. 15 del 18/05/2017.

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