Studio De Stefano Gemmologi Associati is a leader in the Appraisal, Appraisal and Certification of jewels and precious stones, with thirty years of national and international experience. Founded by Piero De Stefano in 1999, the studio offers a complete consultancy service to individuals and operators in the sector to respond to any need in the world of jewelery.

PIERO DE STEFANO

Piero De Stefano was born in Rome in 1956. After graduating in Law at the Sapienza University of Rome in 1979, he graduated as a gemologist at the Italian Gemological Institute, immediately obtaining the title of diamond analyst at the Gemological Institute of America.

VALENTINA ARCECI

Valentina Arceci, graduated in 2006 from the classical high school "Giulio Cesare". He continued his studies in the field of geology and graduated in Earth sciences in 2012 at the University of Rome "La Sapienza", with a thesis in mineralogy.