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The last fifteen years have been characterized by the discovery of many new deposits of precious and semi-precious stones, although a number of them have been depleted, the new sources have been located in two main regions: the region surrounding the Indian Ocean including East Africa and Madagascar, India, Sri Lanka and Southeast Asia. The second region includes Afghanistan, Pakistan, northern India to Nepal, Myanmar and Vietnam. Production is therefore taking off again in most parts of the world. Wealth creation is mostly based on knowledge in promising fields and entrepreneurship. This book will enable many readers to create opportunities in a field that was previously unknown to them, and above all will serve as a guide for the realization of the goal set, namely the creation of a modern jewelry production unit using the most appropriate techniques, methods and equipment. Gemstones can be the lever of economic power for each individual as well as for an entire nation when they are used efficiently.