: Many independent jewelers buy pre-owned designer jewelry for inventory. Tips to Maximize Resale Value Can I upgrade my Tiffany & Co. engagement ring?

: Personalized, engraved, or altered items cannot be returned. Where to Sell Tiffany Jewelry

: Damaged or blemished rings may not receive full credit.

: Items can be returned for a full refund or exchange within 30 days if they are in "perfect saleable condition" with the original receipt.