Wrong item lvl for Titanium Earthguard Ring

[Zaluster]

Hello, I´m going to report a general error, not only in my character.

I changed one of my rings yesterday, I replaced a blue one (Wich has lvl 200) for the Titanium ring of Jewelcrafting. (http://thottbot.com/i42643)
I have noticed, that my new epic ring has lower lvl than the blue one before, instead of 200 it has 187.

How can it be possible? I am cheking some webs, and I see that the lvl of Titanium Earthguard Ring, is 187.
Is this an error of wowdatabase?

[Milagros]

Both numbers are just pure item level for those items, every item have it- green ,blue or epic. Blue item lvl 200 dont get the same score as epic item lvl 200 since they have different quality. Color of the item always represent quality of some item most of the time.