Retailers Hannah Martin Jewellery74a Clerkenwell RoadLondonEC1M 5QA Walk-ins always welcome - no appointment needed. Showroom opening Monday to Friday, 10am - 6pm. Evenings and weekends by prior arrangement. COVID-19 UPDATE: In light of the current worldwide health crisis, we have sadly closed our showroom to the public until further notice. Our online store is still open and we are operating as close-to-normal service as possible! Appointments Map » Email » Tel. +44 (0)20 7251 6700 »