<prompt> Human: So I bought a Tiffanys engagement ring for my ex in spring 2013, and she wore it for a little over a year before we split and gave it back. Ive been holding onto since not really knowing the best way to recoup some of the cost I have a certificate of authenticity from tiffanys showing the amount I paid for it and maybe a serial number or some other definitive way to prove its real . It was listed on ebay a couple of times with the minimum purcahse price set at under half the purchase price but little and less came of it. Truthfully I seldom think about it anymore, but while walking past a Tiffanys store the other day I had an epiphany that reddit might be a goldmine of advice. Thx in advance for any help you might be able to offer.Edit: fixed a grammatical error or two.  <response>: An ex bought me jewelry from Zales then cheated on me promptly. I dont know if the sale lady just hated cheating men or what, but she let me swap it out without a receipt or box or anything. All I did was give her his name. I have a beautiful strand of pearls now that love. 