Gems & Gemmology Workshop This one-day workshop will give you a solid overview of many of the key topics relating to gems and gemmology, covering scientific aspects of the subject, the journey of a gemstone and the practical side of gem properties and identification. You will learn to use some of the main gemmologist’s tools and have a chance to examine a wide range of gemstones. A 1-hour lunch break is included and you will need to provide your own lunch.