Hatton Garden Diamond is a jeweller specialising in bespoke engagement rings and diamond jewellery in London's Hatton Garden diamond quarter. Since 1982, this family-run business has handcrafted pieces using GIA-graded diamonds, both lab-grown and traditionally mined. The team offers a unique design service, listening to clients' requirements to create custom rings. Workshop techniques include cuttlefish casting, a traditional metal casting method used to reshape gold and precious metals, with options for diamond setting such as flush or gypsy setting. Each piece is individually finished and polished to order.