The Standard Ring of Isaac Zoputanoff is a 2562 years old piece made by Isaac Zoputanoff, a jeweler living in Troy.
Considering its age and the quality of the work, people consider it of high value.
It is engraved with central asian patterns and some symbols pertaining to Judaism.
This piece doesn't exist, but as a legend. It is said that in the year -523, Beletum Zoputanoff, the owner, made use of it in Knossos to empower the Zoputanoff family. Now it is lost, or broken, we will never know.