Some hints for CINEMA4D users:
The CINEMA4D scene includes the setup for the highlighting effect and the original light setup. A basic 360° rotation animation is included as well. You might have to adjust the highlights parameters depending on your output format. The current settings of the scene are good for ca. 400x400 Pixel renderings.
Best results for the mirror effect are achieved using a HDRI environment sky (which can be also set invisible for the camera using the Render tag on the sky object).