This item is 100% authentic Zales product purchased for around $350.00 after tax. The Sterling Silver is .925 and the Diamonds are both black and white, the white are .05 karat and the black are .1 karat, total estimated diamond karat weight is 1/2 or .5 karat. The clasp reads .925 and below that it has the letters JWBR. 

 Also if truly interested in the product and willing to buy it for the posted price I will go out of my way to get you paperwork on the item. It will cost me extra money to do so but I will gladly for any serious buyer that's doubtful but there should be no worries cause if I described a different item then you thought you were going to be receiving ebay would back you up anyway so trust shouldn't be an issue.

 Any questions or offers please feel free to ask.