I understand what your saying. What I've read is, the dental gold could be mixed with platinum or palladium giving it a silver color. But the item shows no wear whatsoever. That may have been bad lighting when I took the picture. I took the picture using my Samsung Galaxy SIII with a 30x Jewelers Loupe over the camera lens. I've taken another picture from a different angle and it shows no wear. This bracelet looks brand new. No Wear.
The only thing I can think of is to call a few reputable jewelers tomorrow and get an idea of what it could be worth. I don't think Gov Deals scams people by using "ghost" bidders. Case in point. Last Nov 2012, I purchased, through Gov Deals, over $100k worth of electronics, for a little over $600. These were Fujitsu PBX systems that were still working. Since I didn't care about trying to resell these units, I scrapped them for a little over 3K electronics scrap. So I can almost say for certain, that Gov Deals DOES NOT use "ghost" bidders to bump up the price.
http://i1064.photobucket.com/albums/u373/NorthShoreJoe/ScrappyMcFlappy/4129_215_2_zpsc0fcbd1c.jpg[img]
[img]http://i1064.photobucket.com/albums/u373/NorthShoreJoe/ScrappyMcFlappy/PICT2569_zpsc0417b8f.jpg
The Backplane boards were impressive. Quite a few pins but I didn't bother. Sold them as is.
The logic boards looked like this...
If I remember correctly, I got 42 Intel 386 DX but they were through-hole and dirtied with solder on the pins. I still have them.
I've only started with jewelry recently, since getting more involved with GRF. The electronics scrap recycling thing I was heavy into while I was active over at SMF (Scrap Metal Forum) but believe me, I still look at all the auctions for deals like this.