Owners Christian Schaffrath & Alexander Leuz, both grew up in the jewelry business and are driven by the ambition to perfect and the desire to create new ideas, concepts and discoveries. Calla Collection: Calla CALLA Calla CALLA Calla CALFN Calla CALL2 Calla CALL2 Calla CALLA Calla CALD3 Calla CALTR Calla CALTR Calla CALLA Calla CALLA Calla CALL2 Calla CALL2 Calla CALSO Calla CALSO