The Historic Necklace of Ahmet Caesar is a 4397 years old piece made by Ahmet Caesar, a copper smith living in Troy.
Considering its age and the quality of the work, people consider it of priceless value.
It is engraved with central asian patterns and some symbols pertaining to Ancient Mesopotamian religion.
This piece doesn't exist, but as a legend. It is said that in the year -2347, Canaan Caesar, the owner, made use of it in Troy to empower the Caesar family. Now it is lost, or broken, we will never know.