Reference for those in the jewelry trade who need to estimate weights of gemstones set in jewelry. Includes formulas to estimate weights of 75 shapes of gemstones of all varieties, as well as easy-to-use tables for most of the common shapes. It has become the industry standard.
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"...a remarkably comprehensive set of weight estimation formulae for mounted diamonds, colored stones and pearls.... those who appraise, buy, sell, insure or loan on used or estate jewelry....should consider such detailed tables a major resource for their estimating process."
-- -- from the foreword by Richard T. Liddicoat
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4 of 4 people found the following review helpful:
5.0 out of 5 stars
Great complete book,
This review is from: The Complete Handbook for Gemstone Weight Estimation (Paperback)
This book is all I hoped that it would be and more. It enables me to quickly determine the type of cut of the gemstone. And from there, determine how many carats in the gemstone. I highly recommend this book.
4.0 out of 5 stars
Comprehensive and Easy to Use,
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This review is from: The Complete Handbook for Gemstone Weight Estimation (Paperback)
This book appears to be comprehensive and easy to use. A great tool for jewelry appraisers. However, I haven't had the time to thoroughly review, but I am concerned that the estimated diamond weights appear to be off. A 6.5mm round diamond typically (depending on depth of the stone) will weigh approximately 1 ct. The estimate in the book is much higher at 1.26-1.35ct. That is a big price difference which would cause a novice to overvalue a stone.
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