Purified Lunar Dust

Hello, I was confused when looking at the item mentioned in title, because in the tool tips it doesn't mention having Int or Stam bonuses, but yet when compared with other gear I own, it says replacing would give such benefits. I'm just wondering what could be causing this?

https://i.imgur.com/Golat9K.png

It does not have those stats and it doesn't show them in game for me. Something might be wrong with your item cache. If you want to fix it, you can try to delete Cache folder in your WoW folder.