Gold and Pearl Stickpin

Gold and Pearl Stickpin is a treasure in Uncharted 3: Drake's Deception, found in Stay in the Light.

After fleeing the spiders, you will enter a room that requires you to climb across a chandelier, ultimately causing the ceiling to fall to a 45 degree angle. Sully will walk up it, saying "that will work". Do not follow him, Instead, get on the slanted ceiling and turn to your right. Follow the still in-tact ceiling around through a doorway. You will find the treasure just through the doorway.