After speaking with a few more people, that disclaimer doesn’t work in the case of fraud. In this case, the diamond was in fact the original diamond and was not switched. I can prove that. Also, the photo matches the ring and description with the exception of the diamond carat weight. No diamond mm measurement was given on the certificate.
So yes, those disclaimers hold true as far as objective valuation. They allow a certain amount of leway as far as color and clarity opinion; however, the legal question is: “Would any reasonable gemologist from any school or background measure the carat weight differently?” The answer is NO. We all measure carat weight the same- with a scale. And if the diamond was already in a ring, and had to be estimated we would measure the diamond at 8mm with a proportional depth, and use the chart to document an estimated size accordingly. An 8mm round diamond is NOT a 2.75ct diamond on anyones size chart.
So yes, those fancy wordy disclosures may hold up in court, EXCEPT in the case of fraud. My husband is a DA. He said there isn’t a prosecutor or judge alive who wouldn’t look at that certificate and the ring and not agree it is fraudulent. That disclosure is garbage and offers absolutely no protection when it comes to “duping” a customer or sending false papers with a diamond.