This practical, comprehensive, easy-to-understand guide provides all the information you need in order to know what to look for, and what to look out for, including: • What qualifies as a “gemstone”? • How to evaluate color—and its impact on price. • Deciding between a natural gem and an enhanced gem … and new glass-gemstone compositions. • Colored gemstone synthesis and treatment. • What to ask when buying the stone. • What to get in writing.• How to get what you want within your budget. • Price guides for popular gems, opals and synthetic stones. • Important information about buying on the Internet. • ... and much more!