The Unique Ring of Beletum Zink is a 3855 years old piece made by Beletum Zink, a jeweler living in Isfahan.
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 Yazdanism.
This piece doesn't exist, but as a legend. It is said that in the year 1007, Alda Zink, the owner, made use of it in Cologne to empower the Zink family. Now it is lost, or broken, we will never know.