By Charles I. Carmona
Charles I. Carmona, G.G., is a working gemologist/appraiser who, over decades of experience, has compiled this guide to estimating the weights of all shapes and varieties of mounted gemstones. This is a standard reference and a must for the workbench, desktop or library of anyone related to the jewelry trade. Includes hundreds of black-and-white diagrams and charts. 434 pages.
|Charles I. Carmona|
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