How much is my vintage Womens Lucien Piccard Watch worth?

Here\\\’s a question that was asked about Vintage Diamonds:
I have a vintage Lucien Piccard womes watch. It has 21.8 grams of 14k White Gold. It also is set with 16-.03 Carat Brilliant cut diamonds with VS Clarity and G color on a braided chain style band with fold over clasp. I had it appraised for $2800 at a local Jewler, with the documentation.

Now how much can I expect from say Ebay?

Thanks in advance