The I just asked says it depends on: 1. Who you are. 2. How fast you want it back. 3. What's its value. 4. How many coins you have. (1 in this case) 5. How fast you can pick up a phone, dial PCGS, and ASK THEM!
As others have said, several things factor in. A couple being how fast you want it graded and how much the coin is worth. You also have to have a subscription to their service. If you only have one coin (or even a couple) you want graded...often the easiest way is to find a dealer near you who does submissions. Often you can include a coin in their submission and save on some of the costs. A knowledgeable dealer can also give you advice on which coins to submit and which not to.
