Actually, the chances of Archduchess Isabella's diamond to be the Florentine seems close to zero. The possession track does not seem coherent with that. Moreover, the pear-shape of Isabella's diamond seems more accentuated than on the Florentine.
I am not a jewellery expert, so it would be presumptuous from me to give an authoritative evaluation of the number of carats. Moreover, we should not forget that the number of carats (which represents the weight of a diamond) depends not only on the height and width of the diamond, but also on its depth: with an identical frontal surface, a diamond can have more or less carats if it is rather flat or rather round...
With 137.27 carats, the Florentine compares in weight with the famous Regent Diamond (in the French Crown Jewels' collection since 1717 and now in the Louvre Museum in Paris), which has 140.6 carats.
As for Archduchess Isabella's pear-shaped diamond, I think it could be compared in size with the Sancy diamond (in the French Crown Jewels' collection from 1657 to 1792, and in the Louvre Museum since 1976), which has 55.23 carats. Here are, next to each other for a better visual comparison, a picture of Nancy, Viscountess Astor in 1949, wearing the Sancy diamond as the centre of her tiara's central ornament, and the picture of Archduchess Isabella that you have already posted.
So I would say, very approximatively, about 50 or 60 carats, which is already a very sizeable diamond.
--Previous Message-- : : So indeed the chances for this Diamond to be : the Fiorentino are very low, probably my : next is going to sound unnecessary but : looking to the picture you post of : archduchess during the coronation of king : Charles and comparing to peridot parure : stones that still survive in our days how : many carats more or less would you give to : this unnamed Diamond? :
on July 8, 2014, 7:09 pm, in reply to "
