Gem-A (the Gemmological Association of Great Britain) is the UK’s leading authority on gemmological education, research, and standards, providing internationally recognised diplomas and professional development to gemmologists, jewellers, and industry specialists. As a cornerstone of credibility in the gem trade, Gem-A shapes industry practices through its courses in gem identification, treatments, gemstone grading, and ethical sourcing. Jewellery Focus offers dedicated coverage of Gem-A’s curriculum updates, examination insights, student exhibitions, research publications, and CPD events. Our reporting aids retailers, manufacturers, gem dealers, and valuers in understanding advancements in gem knowledge, technical standards, and professional qualifications—supporting quality assurance, consumer trust, and commercial excellence in the UK jewellery sector.