Posting:A Puzzle Within A Puzzle

After through analysis of Oolmagi's warp cube, it seems that they left some sort of artifact hidden away in a chamber wall.

Anyone who can identify the artifact and its purpose will be rewarded.

- Moz Lux

A metal plate with 81 gemstones affixed to it in a grid. Each gemstone cut into an octagonal pattern with one or more scores in its surface. The Symbol of Jalari is present on the back of the artifact followed by a passage written in elvish.