I'm no expert on spotting fakes, but the tags on the Harrod's ties look similar to the ones on my Harrod's tie, so I'd assume it's authentic. In general, my observation is that it's best to avoid all the flashy name-brands like Gucci, Prada, Versace, especially the logowear. You're much more likely to get a fake, and it's not like the quality of even the real products is generally worth the price. I generally limit my ebay buying to tailored clothing and stick with labels that are more oriented towards the clotheshorses. Generally someone has to know something about clothes to be interested in Kiton or Isaia or Oxxford, and as such sellers are far less likely to try and put one over on their customers (though it has been done). If you still are steadfast in getting Gucci or Versace products through eBay, e-mail conversations with the seller usually illustrate his legitimacy. Note that the seller of the fake products has a standoffish attitude in response to your questions and fails to provide a guarantee of authenticity. Since he's not confirming that his merchandise is the real deal, you cannot accuse him of misrepresenting it should you find that you bought a fake. An honest seller would a) address your questions in a friendly manner and try to provide a satisfactory response and b) guarantee that what he is selling is authentic.