Lab-grown luxuries: cruelty-free silk, diamonds, and leather offer an ethical alternative

Celebrities such as Leonardo DiCaprio and Stella McCartney are helping push a boom of high-quality, synthetic materials used by luxury goods firms

Brave new art world: the app that brings galleries into your living room

ArtPassport lets you take a virtual tour of an exhibition from the comfort of your sofa – part a mission by two brothers to demystify the art world