The base of the pan has a diameter of 13 cm

No, unfortunately it does not. In addition, there is a handle on the opposite side of the handle, which is not shown in the photo and is not mentioned in the description. Unattractive but perhaps practical for rheumatics.... And besides, I think the pot is too expensive for what it is.

The pot is supplied without a lid. However, this can be purchased separately.https://www.galaxus.ch/de/s2/product/demeyere-deckel-apollo-30-cm-edelstahl-pfannendeckel-11046395

After clarification with our responsible department we can inform you that this pan is constructed of the following seven metal layers: -stainless steel in the middle -pure aluminium for adhesion -aluminium alloy for temperature distribution -pure aluminium -a magnetic combination of three metal alloys (TriplInduc) for the induction plates