I''m not to do the following, just curiosity from me and my colleagues, that are working in a project for an insurance company. We came with that question and we need to solve it! 
Imagine someone buys a ring (let''s say 60.000$) in Tiffany''s, with the certificates (I suppose for this price the jewels are certified). At home, the customer changes one diamons for a fake one, and one month after, he goes back to Tiffany''s, and says that he took the piece to a laboratory and the result was that one diamond is fake, and he hasn''t touched anything from the piece. What would Tiffany do?
Is the customer word over Tiffany''s? Do they have an insurance for this cases? Do they have some sophisticated system in order to assure that when the piece leave Tiffany what authentic?
How do they manage these situations?
Thanks a lot!!
Imagine someone buys a ring (let''s say 60.000$) in Tiffany''s, with the certificates (I suppose for this price the jewels are certified). At home, the customer changes one diamons for a fake one, and one month after, he goes back to Tiffany''s, and says that he took the piece to a laboratory and the result was that one diamond is fake, and he hasn''t touched anything from the piece. What would Tiffany do?
Is the customer word over Tiffany''s? Do they have an insurance for this cases? Do they have some sophisticated system in order to assure that when the piece leave Tiffany what authentic?
How do they manage these situations?
Thanks a lot!!