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Gemstone Buying Guide

 
Gemstone Buying Guide Gemstone Buying Guide: How to evaluate, identify, select and care for colored gems. By Renee Newman, GG. Second edition.

A great book to learn about the market for colored gemstones. Includes lots of basic information about colored gemstones: price factors, cutting styles, color, clarity, weight, synthetics, immitations and gemstone care. Our favorite parts are the many great photos and the detailed descriptions for a large number of gemstones. This book is a 7" x 9" paperback with 155 pages.

Only $19.95

Ready for immediate shipping.

Gemstone Buying Guide
Table of Contents

  Acknowledgements
7

1. Colored Gem Price Factors in a Nutshell

8
    Price Factors Explained
8
    Two Common Beliefs Which Warrant Review
15
    Colored Gem Pricing
16

2. Shape and Cutting Style

18
    Gemstone Terms Defined
19
    Traditional Cutting Styles
20
    Fancy Cuts and Cutting Techniques
24
    Carving
27
    Drusy Gem Materials
31

3. Carat Weight

33
    Size Versus Carat Weight
33
    Effect of Carat Weight on Price
34
    Estimating Carat Weight
35

4. Gemstone Color

36
    Evaluating Gemstone Color
37
    How to Examine Color
39
    How Lighting Affects Gem Color
40

5. Judging Clarity and Transparency

42
    Gemstone Inclusions
43
    Gemstone Blemishes
45
    Examining Gemstones for Clarity
45
    How Lighting Can Affect Your Perception of Clarity
47
    Do We Need Grades to Evaluate Clarity and Transparency?
48

6. Judging Cut Quality

49
    Judging the Face-Up View
49
    Judging the Profile
51
    How Cut Affects Price
54
    Judging "Life"
55

7. Evaluating Star and Cat's-Eye Stones

56

8. Treatments

59

9. Synthetic Stones

63
    Synthetic Versus Natural
64

10. Deceptive Practices

65
    Misnomers
67

11. Gemstone Descriptions

68
    Amethyst and Other Quartz Stones
71
    Chalcedony
75
    Chrysoberyl (Alexandrite, Cat's-eye...)
80
    Emerald and Other Beryl Stones
82
    Garnet
86
    Iolite
91
    Jade
92
    Lapis Lazuli
100
    Malachite
101
    Moonstone and Some Other Feldspars
102
    Opal
104
    Peridot
112
    Spodumene
113
    Ruby and Sapphire (Corundum)
114
    Spinel
118
    Tanzanite and Other Zoisites
120
    Topaz
122
    Tourmaline
124
    Turquoise
128
    Zircon
130
    Ammolite
132
    Andalusite, Apatite
133
    Azurite, Benitoite
134
    Charoite, Calcite
135
    Diopside, Fluorite
136
    Hematite, Natural Glass (Obsidian, Moldavite)
137
    Larimar, Prehnite, Rhodonite
138
    Rhodochrosite, Sugilite
139
    Sphene (Titanite), Variscite
140
    Test Your Gem IQ
141

12. Caring for Your Gems

142

Birthstones and Anniversary Stones

146

Suppliers of Jewelry and Stones for Photographs

147
  Bibliography
150
  Index
153

 

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