tiffany & co sets what would you pay

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hi i have a tiffany & co necklace and bracelet set which was bought for me last year i have since worn it maybe a dozen times but i want to sell it i have tried to put it on ebay but they say it ccould be fake so they removed it which i understood but i am now going to put it in the paper as i cant find a buyer what would you say is a good price to put it up for ?