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Secrets of the Gem Trade: The Connoisseur's Guide to Precious Gemstones
added by work on November 8, 2006 10:30 AM
Secrets Of The Gem Trade is the first comphrehensive gemstone grading manual. The book divides into two parts. Section I describes the criteria used to quality grade faceted gems, cabochons, pear...
Secrets of the Gem Trade: The Connoisseur's Guide to Precious Gemstones
added by tacos on November 25, 2006 7:40 AM
Secrets Of The Gem Trade is the first comphrehensive gemstone grading manual. The book divides into two parts. Section I describes the criteria used to quality grade faceted gems, cabochons, pear...
