We purchased a Crown of Light Diamond from DI in Cabo San Lucas on 2/19th, 2019. They took my ring that I had purchased from DI in Alaska 5 years as a trade in we originally paid $6, 700.00 for and charged us another $6, 500.000. When I got home, I had the ring appraised and the Gemologist said that they could not appraise the ring because it was O in color and their book only goes to an M. With that said the same ring with a M color would only be $3, 200.00. DI said I have to take it to their appraisers as it is unique to them and their own cut, and a regular Gemologist can not value it. I am not sure how DI can put a price on a cut. I tried working with DI for an exchange and they came back with another ring, that we would need to pay another $11, 000.00, for a total of $26, 000.00. When I spoke to the gemologist, she advised that the ring if it was a GIA rated, which it wasn't, it was an EGL was only worth $11, 000.00. We were on a Carnival Cruise, and the Carnival Cruise Shopping Guide said it was a good value. We believed him. They gave us a American Gem Society Diamond Quality Report, that only shows what the diamond is, not an appraised value. When I reached out to the lab, they said they only offer reports, not appraised amounts. I am unable to attach copies of the emails correspondence back and forth.