I am brand new, but I have been eyeballing these on eBay. He seems to accept "Best offers" and if you look at the feedback it seems to be consistently good for the pearls.
http://www.ebay.com/itm/Tahitian-Baroque-Pearl-Necklace-/282590345560?hash=item41cbb27958:g:IyQAAOSwIaFZLDjG