There are many important things to look for when making sure the Gucci handbag you are purchasing is authentic. First of all, you should always purchase from a reputable seller so you can be sure the bag is authentic. But if you are purchasing from eBay or another website or seller, look closely at the bag before agreeing to purchase. You should pay special attention to the stitching around the edges of a purse. An authentic Gucci bag will have high quality, fine stitching around the bag while a fake one will probably have rough, uneven stitching. If you are unsure as to whether or not the Gucci bag you're buying is authentic or not, go to a reputable Gucci retailer, study the bag you want closely, and then take another look at the bag in question. Are all the labels in the same place? Is everything spelled correctly? You need to pay close attention to all these details to make sure your Gucci handbag is authentic.