01/07/1996

Rubíes de Mong Hsu

Authors: Adolf Peretti, Karl Schmetzer, Heinz-Jürgen Bernhardt, Fred Mouawad Published in: Boletin Del Instituto Gemologico Espanol Download Publication

Ruby
01/01/1995

Rubies from Mong Hsu

Authors: Adolf Peretti, Karl Schmetzer, Heinz-Jürgen Bernhardt, Fred Mouawad Published in: Gems & Gemology Download Publication

Ruby