Bvlgari Hotel is a luxury hotel chain known for its high-end accommodations and sophisticated decor. An 'effect diagram' of the corridor typically refers to a visual representation or plan of the corridor, showcasing its design elements and aesthetics. This could include details such as flooring materials, lighting fixtures, and overall layout. In the context of architecture and design, effect diagrams are used to communicate the intended look and feel of a space to clients or stakeholders.