It's a ruby.

In this Bavarian country house, select areas were thoughtfully redesigned, focusing on the children’s bedrooms and their en-suite baths. Each room features cozy built-in beds, blending a modern rural sensibility with warm, inviting details and impeccable craftsmanship. Special attention was given to the Herren’s study, which was transformed with bespoke wood panelling. One wall conceals bronzed doors that open to reveal integrated bookshelves, storage, and technology—seamlessly balancing elegance and functionality throughout this highly refined interior.