The chemistry, properties and tests of precious stones

A clear, concise guide to the science behind gems, this volume walks readers through what truly makes a stone “precious.” Beginning with the fundamentals of hardness, colour, transparency and refractive behavior, it explains how these physical traits set gems apart from ordinary minerals. The author also explores how market forces and historical events have shifted the value of stones like rubies and diamonds over time.

Beyond the basics, the book offers practical methods for testing and identifying gemstones, drawing on chemistry and simple laboratory techniques that jewelers and collectors can apply. Detailed descriptions of common and rarer stones help readers appreciate both their beauty and their durability. Whether you’re a seasoned gem dealer, a hobbyist, or simply curious about the glittering world behind the shop window, the handbook provides the essential knowledge to understand and evaluate precious stones with confidence.