Personalized, altered, or engraved items cannot be returned or exchanged.
This is the only "trade-in" option Tiffany offers, and it is limited strictly to diamond engagement rings. What is the Tiffany & Co. Return/Exchange Policy? will tiffany buy back jewelry
Jewelry must be in "perfect saleable condition" with the original sales receipt and all packaging (boxes and pouches). Personalized, altered, or engraved items cannot be returned