What's it all about?
This provides an invaluable reference for those in the jewellery trade who need to estimate weights of gemstones set in jewellery. Included are formulae 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.
From the foreword by Richard T. Liddicoat...
A remarkably comprehensive set of weight estimation formulae for mounted diamonds, coloured 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.
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