The Diamond Store.co.uk - What we do have is a team of skilled craftsman, diamond and gemstone buyers, experienced jewellery experts. The Diamond Store’s heritage stretches back to 1956, when our family-run business first began making beautiful fine jewellery in Hatton Garden. As a London-based, British brand, we fully embrace our roots in craftsmanship, but always have our focus on the future, and in 2006, we launched our online store, offering beautiful fine jewellery direct to our customers.