Hello. I bought many dresses from this place and I can tell you for sure, that you don't need any guarantee for their stuffs; they all are of high quality and all comes in the best condition. But, they ensure to client a 30 days return guarantee. For more details you can check their site http://www.dresswe.com/ but from my experience with them I can give you 100% guarantee that you will be pleased if you're going to buy from them. Hope my answer helped you! Best regards!