Introductory courses are designed for the beginner wanting to gain an understanding into the wonderful world of gemmology. You might be involved in the jewellery trade or just fascinated by gems. Course outline for Introduction to gems and gemmology Properties of gemstones  Corundum  Diamond  Coloured gems  Synthetics and simulants  Ornamentals (organic, minerals, rocks, lapidary)  Laboratory … Continue reading GAA Introductory courses