Throughout history, the world of gems and jewellery has attracted both admiration and deception. From ancient times to the present day, imitations, treated stones, and clever substitutions have challenged buyers and professionals alike. Misunderstandings may arise from trade names or cultural traditions, while intentional misrepresentation and outright fraud exploit gaps in knowledge. This webinar highlights the most common types of fakes, misleading practices, and fraudulent schemes in gems and jewellery—equipping professionals and enthusiasts with the awareness and tools needed to recognize and prevent them.