The Silver Mosaic Inca Earring is the first treasure that can be found in Uncharted: Drake's Fortune.
The Earring is found at the beginning of Chapter 2 - The Search for El Dorado. From the start of the chapter, follow the left side of the river bank until a fairly large rock blocks your way. Climb this rock and jump down on the other side and the treasure will be on the ground at Nate's feet.
- Earrings were a symbol of social status in the Inca civilization. Their use could only be permitted by government authority, and they were worn by both men and women. They were large pieces of jewelry that stretched the earlobe of the wearer greatly. 
- The Incas designed numerous pieces of sophisticated jewelry, either by hammering thin malleable metal or by pouring molten metal into molds. Jewelry was worn daily by royal families, and was worn only during special celebrations by common citizens.
- ↑ 1.0 1.1 Peru travel guide: http://www.peru-travel-confidential.com/inca-jewelry.html
- ↑ Incan jewelry making methods