Immerse yourself in the allure of diamonds within a private setting. This brief experience transports you into the heart of the world’s longest-running diamond polishing factory, nestled in Museum Square.

Witness master polishers and goldsmiths in action, gaining an understanding of the artistry behind diamond cutting. Marvel at the Koh-i-Noor replica, re-polished by Royal Coster for Queen Victoria, and receive a special introduction to the Royal 201: their signature cut and the most dazzling round cut natural diamond on the planet.

Whether you're venturing solo, as a pair, or with family, this tailored tour is the ideal way to savour the splendour of Royal Coster at your leisure.