BTW --- the most reputable site that I know of that sells Cuban cigars ... doesn't even list a Corona Gorda.
They list a Corona, Gran Corona, and Super Corona ... but not Corona Gorda ... interesting. What they have, that may be what the guy is selling ... is a Super Corona ... which matches the size what the one site site I posted above called a Corona Gorda.
The only H. Upmann that come unbanded (that I know of, besides the minis) are the Connoisseur No. 1 (Hermoso No.4) 5 X 48, the H. Upmann Magnums, Majestics (Nacionale) 5½ x 40, and the Coronas 5½ x 48 ... but then, with the 'almost 200' handmade and machine-made sizes and shapes, I obviously don't know them all ... LOL!
The site I posted first also lists the 'Corona Gorda' as a H. Upmann-Magnum No. 46, with Corona Gorda in parentheses ...
I hope this helps ...