A-section-of-the-enthusiastic-audience-at-the-presentation-by-Vincent-Pardieu

Published August 11, 2011 at 518 × 304 in Presentation by Vincent Pardieu, Supervisor, Field Gemology at the GIA Laboratory, Bangkok, Thailand, on April 7, 2011 at the NGJA headquarters, Colombo, Sri Lanka

A-section-of-the-enthusiastic-audience-at-the-presentation-by-Vincent-Pardieu

A section of the enthusiastic audience at the presentation by Mr. Vincent Pardieu

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