Frequently Asked Questions

Will I get a certificate with my engagement ring?

You will receive a Tiffany & Co. engagement ring certificate with your engagement ring if:



  • The Diamond engagement centre stone is equal to or greater than .18 carat
  • The round, oval, emerald cut and rectangular modified brilliant-cut side stones in three stone rings are equal to or greater than .18 carat. each.


 The Tiffany Diamond Certificate includes the Tiffany & Co. Full Lifetime Warranty. The diamond warranty is a written promise that the information on the diamond certificate is true at the time of sale. The diamond warranty does not cover the durability of the diamond or any damage to it caused by the customer.