There are some pretty flagrant differences on items like clarity and color, which would have a bearing on the retail value.
It is interesting that you have a vast array of documentation, including the format, from some kind of memo to a very detailed appraisal.
We insure over $1.7 billion of jewelry throughout the country.
As much disclosure as possible should be on the appraisal.
If you didn't have a very accurate description, you're not going to get the identical piece.