Unit1 AN INTRODUCTION TO GEM AND GEMOLOGY Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Business Nature & Products(Ⅰ) Unit2 WHAT ARE SYNTHETIC DIAMONDS Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Products(Ⅱ) Unit3 COLOR Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Products (Ⅲ) Unit4 REFRACTIVE INDEX AND REFRACTOMETER Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Products (Ⅳ) Unit5 PRODUCTION PROCESS AND TECHNOLOGY OF JEWELRY Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Products (Ⅴ) Unit6 THE NOMENCLATURE OF JEWELRYS Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Introduction (Ⅰ) Unit7 MAINLAND CHINA:A VAST MARKET FOR COLORED GEMSTONES Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Introduction (Ⅱ) Unit8 GEMSTONE APPRAISALS AND GEMSTONE VALUE Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Introduction (Ⅲ) Unit9 MAKE A FASHION STATEMENT WITH GEM-SET JEWELRYS Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Introduction (Ⅳ) Unit10 HOW DOES NEW TECHNOLOGY BENEFIT THE DIAMOND AND JEWELRY INDUSTRY Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Introduction (Ⅴ) Unit11 JEWELRY-MAKING TECHNIQUES OF ANCIENT GREEK Part Ⅰ Text 7 Part Ⅱ Words and Expressions Part Ⅲ Reading Material 7 Part Ⅳ Introduction (Ⅵ) Unit12 THE HISTORY OF LAPIDARY Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material 0 Part Ⅳ Talking about products’ merits & benefits Unit13 BLACK & WHITE JEWELRY Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ Offering reference material on products Unit14 FIND OUT YOUR BIRTHSTONE Part Ⅰ Text Part Ⅱ Words and Expressions Part Ⅲ Reading Material Part Ⅳ After-sales service Appendix Appendix Ⅰ Gems Nomenclature Appendix Ⅱ Vocabulary Reference