http://www.staralliance.com/en/faqs/fares-faqs/ has the majority of the details.

You can sort based on the program. It does vary FFP by FFP on the their websites if you wanted to use miles. If you are purchasing the flights thou, its consistent.

RTW: http://www.staralliance.com/en/fares...he-world-fare/
Circle Fare: http://www.staralliance.com/en/fares/circle-fares/
Airpasses: http://www.staralliance.com/en/fares/airpasses/