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PREFACE
The diamond, aside from its glitter and glamor and in spite of its cold imperturbability, is an explosive, contro­versial subject, with many facets of human, historical, tech­nical and popular interest. The author approached this work not as an authority but as an objective reporter seeking to find out all that he could about the diamond. His discoveries and reactions he has put down with all the accuracy, im­partiality and completeness his talents permitted. He has declined either to ''plead a cause" or to present an "ex­pose?' Nor has he been awe-stricken or intimidated by the sparkling glory and tradition of the diamond.
The author wishes to express his deep appreciation to Mr. Jack Baumgold, of Baumgold Brothers, the New York diamond cutters, for inspiration and encouragement in the preparation of the book. Additional thanks are due to Mr. H. T. Dickinson, technical director of De Beers Consoli­dated Mines, Ltd. and Associated Companies, of Kimber-ley, South Africa, for his advice and criticisms; to Mr. Fred V. Cole, editor of Jewelers Circular-Keystone, for shrewd and good-humored suggestions; to Mr. Robert M. Shipley, President of the Gemological Institute of America, for per­mitting to be tapped his Vast fund of gem knowledge; to Miss Dorothy Dignam, diamond fashion authority, for an impressive array of facts about her pet subject; to Mr. Sam Kafka, for certain technical information, and to the authors of the books, pamphlets and articles represented in the
Bibliography.                                         
                                           The Author
New York City
November 25,1941
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