I brought my 6 pieces into the SF store today, but the rep didn't clean it immediately, instead she told me that she was going to send my jewelry to the New York Store for cleaning/polishing. It should be 3-4 weeks before I get them back...
I did see the cleaning price list posted: $15 for necklace, $10 for bracelet, and $5 for rings; so I'm assuming that they do normally charge for cleanings.