Head towards this archway during the chase.
Silver Yemeni Bangle is a treasure in Uncharted 3: Drake's Deception found in Chapter 11 - As Above, So Below.
This one is very easy to miss. While chasing Talbot you will temporarily lose him after climbing a large spiral staircase. Before heading into the crowd to search for him, look to your right for an archway. Enter the archway and immediately turn left. The treasure will be behind some small wooden boxes.