Unit 1 AN INTRODUCTION TO GEM AND GEMOLOGY 1 Part �� Text 1 Part �� Words and Expressions 4 Part �� Reading Material 7 Part �� Business Nature & Products���� 9 Unit 2 WHAT ARE SYNTHETIC DIAMONDS 10 Part �� Text 10 Part �� Words and Expressions 13 Part �� Reading Material 15 Part �� Products���� 16 Unit 3 COLOR 17 Part �� Text 17 Part �� Words and Expressions 19 Part �� Reading Material 22 Part �� Products (��) 24 Unit 4 REFRACTIVE INDEX AND REFRACTOMETER 25 Part �� Text 25 Part �� Words and Expressions 27 Part �� Reading Material 28 Part �� Products (��) 29 Unit 5 PRODUCTION PROCESS AND TECHNOLOGY OFJEWELRY 30 Part �� Text 30 Part �� Words and Expressions 33 Part �� Reading Material 35 Part �� Products (��) 37 Unit 6 THE NOMENCLATURE OF JEWELRYS 39 Part �� Text 39 Part �� Words and Expressions 46 Part �� Reading Material 48 Part �� Introduction (��) 50 Unit 7 MAINLAND CHINA��A VAST MARKET FOR COLOREDGEMSTONES 51 Part �� Text 51 Part �� Words and Expressions 53 Part �� Reading Material 55 Part �� Introduction (��) 58 Unit 8 GEMSTONE APPRAISALS AND GEMSTONE VALUE 60 Part �� Text 60 Part �� Words and Expressions 62 Part �� Reading Material 63 Part �� Introduction (��) 70 Unit 9 MAKE A FASHION STATEMENT WITH GEM-SETJEWELRYS 72 Part �� Text 72 Part �� Words and Expressions 75 Part �� Reading Material 77 Part �� Introduction (��) 79 Unit 10 HOW DOES NEW TECHNOLOGY BENEFIT THE DIAMOND AND JEWELRY INDUSTRY 81 Part �� Text 81 Part �� Words and Expressions 83 Part �� Reading Material 84 Part �� Introduction (��) 85 Unit 11 JEWELRY-MAKING TECHNIQUES OF ANCIENT GREEK 87 Part �� Text 87 Part �� Words and Expressions 94 Part �� Reading Material 97 Part �� Introduction (��) 99 Unit 12 THE HISTORY OF LAPIDARY 101 Part �� Text 101 Part �� Words and Expressions 107 Part �� Reading Material 110 Part �� Talking about products�� merits & benefits 113 Unit 13 BLACK & WHITE JEWELRY 115 Part �� Text 115 Part �� Words and Expressions 119 Part �� Reading Material 121 Part �� Offering reference material on products 128 Unit 14 FIND OUT YOUR BIRTHSTONE 129 Part �� Text 129 Part �� Words and Expressions 136 Part �� Reading Material 137 Part �� After-sales service 141 Appendix 143 Appendix �� Gems Nomenclature 143 Appendix �� Vocabulary 146 Reference 178