Until recently, this Amazon.com listing described this ring as being inscribed with the Lord's Prayer in Arabic. It is not not Arabic, but Elvish. It may have be an Elvish translation of the words from the Gospel of Matthew for all I know. Alas, I must confess my ingorance of that language.
But the customer reviews indicate that it is most likely the One Ring from The Lord of the Rings:
-via Fashionably Geek