Architect: Gigon Guyer Architekten
 Year: 2007
 Function: Retail and apartments
Image 1: De Smaragd  (Kunstlinie, 2009)
 Image 2: Section (Gigon Guyer Architekten)
 Image 3: Floorplan of 10th storey (Gigon Guyer Architekten)
 Image 4: Color scheme for the façades by Adrian Schiess (Gigon Guyer Architekten)
 Image 5: De Smaragd (architour, 2022)
Text: Anneke Bokern