What is luxury? The concept has never received proper attention in social theory. It seemed as if luxury was a highly economic concept that did not need any further investigation. Primary and secondary needs are considered to form the basis of the luxury concept. Luxury has been viewed as useless and superfluous because it belongs to the realm of desires instead of elementary needs. This definition has often been used to stigmatize the use and demonstration of luxury. The needs-wants dichotomy (...) was severely criticized a few decades ago. Luxury touches more than the question of necessity in society. This article attempts to outline the formulation of a definition of luxury. We leave the classic concept of luxury in favor of a more socio-semiotic approach of the concept. The bounds between luxury and some specific product property will be cut through. There is no such thing as a luxury good comparable to categories like ‘cars,’ or ‘clothes.’ Luxury is defined as a specific kind of sign value, produced in specific narratives and used in processes of stratification. As a sign, it becomes apparent that luxury is a relative concept. Every social group can be said to have its own luxury. Every social group has in fact a different kind of luxury, which means that a Cartier is no luxury in some cases where a television is highly exclusive in other cases. (shrink)