You may trade in your diamond/diamond jewelry item for another diamond/diamond jewelry item that is at least double the trade-in value. The trade-in value is based on the original purchase price, excluding charges such as tax and shipping. Trade-in values are automatically generated through KAY Jewelers Trade-in Evaluation system. No trade-in value is given for gold, silver, or other metals, or gemstones. Customers with diamond trade-in merchandise not purchased from one of our store brands, must have a North America or United Kingdom postal address that is documented on an acceptable form of ID, (i.e. Driver's License, State ID, Permanent Resident Card which is commonly called a "Green Card", Military ID, or Passport). Trade-ins cannot be accepted from a customer without a North America or United Kingdom address.Retention Period for all stores EXCEPT those located in Alaska, Hawaii, Oklahoma, North Carolina, Delaware, and Florida: When a customer returns a purchase prior to 30 days from the purchase date and a trade-in is associated with the completed sales slip, the store CANNOT return the trade-in to the owner until the 30 day retention period is expired.Trade-ins of in-store and online purchases are accepted at any KAY Jewelers location as allowed by law. Trade-ins are not accepted at kay.com or towards the purchase of Previously Owned Treasures.