The fringe looks like it was sewn on after it was made, the design is not too exciting, is it supposed to be silk on silk? (Did you do the burn test?) I don't know if it's Persian, as I'm new to this whole rug thing, but I have bought some nice silk rugs off eBay and I think I'd pass on this one...even at $300, I've gotten 3x5' pure silk, more advanced design for $350-400, I'd keep looking, there are deals to be found, as a lot of people need the $ right now.
Here is a photo of a silk/silk Chinese 4x6' (paid $400)...the one you posted has simular design elements, but may be art silk.