This book has been written so as to cover every aspect of rough gemstones. While initially, the authors focus on the fundamentals of gemstone rough- evaluating, sorting and buying, they then, literally, take you across the globe. First, as they explore the gem stone deposits in each nook and cranny of India, and then as they draw attention to the prominent gem deposits in the world. Be it Orissa or Chile, it has been covered by the authors. They have addressed the issues of synthetics and treated rough, a growing concern in the Industry, in a unique fashion- not only by explaining the methods of identification but also by including interesting anecdotes about their experiences with synthetic stones.