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It is very helpful to use this as a reference for benchmark color. There is little or no commentary on evaluation, appraisal or strategic purchasing.
This book is expensive but there are few others like it. Recommended.
The full-color photography is really stunning, and brings a rich assortment of gems to glorious life. Some of the historic pieces pictured are the blue Hope Diamond, the diamond Napoleon Necklace, the Hooker Emerald, and more. Also shown are a colorful collection of "fancy" diamonds, a rare red diamond, the 858-carat uncut Gachala Emerald, the delightful "pink tutu" (a band of dainty rose quartz crystals on a large smoky quartz crystal), a dazzling group of fire opals, a lapis lazuli carving from Afghanistan, and more.
I appreciate how the book celebrates gemstones at various stages: uncut, cut, and set in artfully crafted pieces of jewelry. Many different types of gemstones--aquamarine, garnet, spinel, chrysoberyl, turquoise, etc.--are covered. Features such as a scanning electron microscope photo of the inner structure of an opal give the reader a deeper understanding of the science behind gems. From start to finish, this book is a marvelous feast for both the eyes and the brain.