Rocco Gay is Gemologist G.G. GIA - Santa Monica, CA, since 1990; Founder and Administrator since 2008 of PETRAMUNDI s.r.l (Valenza-Bangkok); Vice President of ICA - International Colored Gemstones Association; Member of the Board of Directors of the A.O.V. group of CONFINDUSTRIA and of the General Council of FEDERORAFI; Member of ASSOGEMME and of the RJC; Member of the MANI INTELLIGENTI Foundation.

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