From the outside, Marisa Hordern’s Edwardian terrace in London’s north Kensington looks just like any other on the street. A tiled path leads up to a grey front door with two clipped olive trees standing outside the red brick facade. “I like seeing people’s reactions when they come in,” says Hordern, the founder and creative director of Missoma, a jewellery label that started life around her kitchen table 16 years ago. “Inside, it really is quite different from what you might expect…”