I finally received a reply from Christies about a month ago and the email said something along the lines of "the item does not meet our guidelines". They did not ask for pictures or more info, so Im not sure who else to take the item to.
There does appear to be cracks but they are veins of different colors, it doesnt seem to have glue or any damage. The original purchase was in the 40s-50s, apparently my great grand father frequently purchased artifacts from around the world and sent them home, many were donated to universities and museums so I would highly doubt it is a reproduction.
The auctioneer that was supposed to sell it labelled it "Chinese Han Dynasty Ancient Jade Four Phoenix Vase, 206BC-220AD" so I dont claim to know the difference between a Dragon and a Phoenix, but I would guess there was some reason he went with that specific title. A quick google search of "Han Dynasty Jade Four Phoenix Vase" does show other vases that have similar figures labelled as Phoenix and many also show the same color lines.
I guess I will try to take to get appraised and see if an appraiser can find more info or verify authenticity.