1) Buying jewelry on ebay is, at least to me, an extremely risky proposition.
2) If it appraised at $12,795, and the auction is NR, again, it seems like an extremely risky proposition.
3) It looks like 22 separate clusters of diamonds, with 10 diamonds per cluster, which means you're looking at 0.01 carats per diamond. There is no way on earth that any gemological institute worth its salt (GIA, for example) is ever going to certify a 0.01 carat diamond as anything. You might as well just buy a similar bracelet in paveed diamonds--cheaper and looks just as nice at that size.
CLIFFS: Don't buy it.