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Diamond Handbook

Diamond Handbook: A Practical Guide to Diamond Evaluation

by Renee Newman, GG

Only $19.95
This book starts with the basics of defining a diamond and diamond formation. Then it explains how to observe diamonds, how they are priced, the many diamond cuts, fancy (colored) diamonds, fluorescence, synthetic stones, treatments, antique cuts, diamond jewelry, branded diamonds, grading reports and much more. This book is a 6" x 9" paperback with 186 pages. Revised second edition.

Diamond Handbook
Table of Contents

  Acknowledgments
8
  Preface
9
1. Basic Facts about Diamonds
11
    What is Diamond?
11
    How are Diamonds Formed?
11
    Where are Diamonds Found?
12
    A Closer Look at Diamond's Remarkable Properties
12
    What Type of Magnification is Used to View Diamonds?
16
    Which Type of Lighting is Best for Viewing Diamonds?
16
    Other Tips on Viewing Diamonds
18
2. Diamond Price Factors
19
    Why the 4 C's is No Longer an Adequate Pricing System
19
    Price Factors Explained
20
        Color
20
        Carat Weight
22
        Cut Quality
23
        Cutting Style and Stone Shape
24
        Clarity
26
        Transparency
31
        Treatment Status
35
3. Judging the Cut of Fancy Shapes
37
    Judging Cut Quality
38
    Bow Ties and Other Dark Patterns
39
    Windows
42
    Fisheyes
44
    Excess Diamond Weight
44
4. Judging Cut (Round Brilliants)
47
    Pavilion
47
    Crown
50
    Table
52
    Girdle
53
    Culet
56
    Star Facet Length %
56
    Lower Girdle Facet %
56
    Symmetry
57
    Polish
58
    "Ideal-Cut Diamonds"
58
    GIA and AGS Cut Grading Factors Compared
59
5. Judging Light Performance
61
    Methods for Judging Light Performance
62
    Gem Labs that Assess Light Performance
64
    Tips on Evaluating Light Performance Visually
70
6. A Closer Look at Clarity
75
    Clarity Grades
75
    Diamond Clarity Examples
78
7. Fluorescence
87
    Diamond Fluorescence
88
    What Causes Diamond Fluorescence?
89
    Is Ultraviolet Lighting the Same as Fluorescent Lighting?
89
    Are Fluorescent Diamonds Undesirable?
90
    My Advice Regarding Diamond Fluorescence
91
8. Synthetic Diamonds
93
    What are Synthetic Diamonds?
93
    How Does Growing Diamonds Differ from Culturing Pearls?
93
    Detecting Synthetic Diamonds
94
    Diamond Types
100
9. Diamond Treatments
103
    Methods for Changing Color
104
        Foil backing
104
        Coating
104
        Irradiation
108
        High Pressure High Temperature (HPHT) Treatment
108
        High Temperature Heat Treatment
111
    Methods for Improving Clarity
111
        Laser Drilling
111
        Fracture Filling
113
10. Judging Fancy Colored Diamonds
117
    Evaluating Fancy Colored Diamonds
122
    Fancy Colored Diamond Rarity
125
11. Antique Cuts and Jewelry
129
    The History of Diamond Cuts
129
    Pricing Antique Diamonds
137
    Period Jewelry (European and American)
138
    Jewelry Periods
139
        Georgian (1714-1837)
139
        Victorian (1837-1901)
140
        Arts and Crafts Movement (1890-1910)
142
        Art Nouveau (1890-1910)
142
        Edwardian (1890-1915)
143
        Art Deco (1915-1935)
145
        Retro (1935-1955)
148
12. Recutting Diamonds
149
    How do Cutters Modify Diamond Color?
152
    Getting your Diamond(s) Recut
154
13. Branded Diamonds
155
14. Diamond Grading Reports
163
    Mini-certs
166
    How Reproducible are Lab Grades?
167
    Addresses of some Diamond Grading Labs
167
  Glossary
171
  Chemical, Physical and Optical Characteristics of Diamonds
177
  Bibliography
179
  Index
183