Silver Capsule Pendant is a treasure in Uncharted 3: Drake's Deception found in Chapter 11 - As Above, So Below. Just after finding the Amazonite and Amber Necklace, go towards the stairs toward Sully and Elena but stop right in front of the fountain. Do not go on the stairs or you will trigger the cut scene. Turn to your right and head into the small cafe. You will find the treasure in the back on a bench.