The Company of Master Jewellers (CMJ) is a UK trade buying group, combining collective purchasing power, marketing support, training programmes, and retail initiatives to empower independent jewellers and national chains. It facilitates competitive sourcing, brand-led campaigns, business development tools, and peer networking—helping members navigate pricing pressures, operational challenges, and marketplace trends. Jewellery Focus delivers specialist coverage of CMJ activities including membership growth, buying strategies, campaign performance, training updates, and franchising models. Our reporting equips retailers, suppliers, brand managers, and manufacturers with trade-critical insight into collaboration opportunities, value optimisation, and strategic positioning within one of the strongest jewellery buying networks in the UK.