Full Description
Discover the common treatments and imitations plus gemstone properties, sources and typical cuts of stones, including a guide on appraisal techniques.
Jewellers and designer goldsmiths, lapidaries and gem cutters, stone setters, gemologists, geologists, collectors and people who buy and sell jewellery at antique fairs and on the internet, this book is for anyone who has ever had a gemstone and wanted identification and information. Featuring a mix of gemstones and gem-set jewellery, it puts gems in context and contains historical context for those buying and selling antique and vintage gem-set jewellery, including details of the stones typically found in Georgian, Victorian and early 20th century settings.
Packed with fascinating gemological details and up-to-date data on more than 70 of the most exquisite gemstones, and written by leading expert, Judith Crowe, learn the common pitfalls in identifying stones and clarify areas of confusion and misidentification.
Contents
About this Book
Gemstone Identification
Gemstone Appraisal
Technical Methods of Identification
Colour
Gemmological Information
Properties of Gemstone Material
Optical Properties
Inclusions
Sources
Gemstone Treatments
Synthetics and Imitations
Cutting
Pricing and Grading
Gemstone Directory
Diamond
Corundum
Beryl
Chrysoberyl
Spinel
Topaz
Tourmaline
Andalusite
Iolite
Quartz
Zircon
Garnet
Jadeite
Spodumene
Zoisite
Peridot
Prehnite
Orthoclase Feldspar
Plagioclase Feldspar
Sugilite
Opal group
Hematite
Scapolite
Diopside
Turquoise
lapis Lazuli
Natural Glass
Sphene
Apatite
Chrysocolla
Rhodochrosite
Fluorite
Malachite
Organic
Coral Amber
Birthstones
Glossary
Index
Credits
