I got a beautiful 6 carat tennis bracelet in Nassau which is genuine and certified and beautiful ... that was 7 years ago, I think. We also bought a beautiful pair of 1 carat diamond earrings at the Diamond Store onboard RCCI ... Freedom of the Seas, I think ... a few years back. Never had a problem. Sorry you had such a problem ... I would think you should be able to contact them and get some sort of satisfaction?