Sprezzatura.
See how it’s used in the first line of text about Verdi at
http://www.teach12.com/ttcx/coursedesclong2.aspx?cid=790&pc=Search
But I already have a user name. 
Then again…I have consistently posted under the same name for seven years…
Does Zoggie connote your mensa-league intelligence and drop dead beauty? No. Time to change.
And Zoggie only has one “Z” whereas Sprezzatura has two. Nothing better than two z’s. Hmmm. It’s tempting.
I always thought that if I changed, though, I would change it to Simisola.
This might make it more tempting: I went to two online Italian-English dictionaries. No sprezzatura in either.
Simisola? Sounds like an Italian cheese, but it’s a little better than what you have now. 
BTW you can change your name here. Just ask a Mod.
One of my favorite words.
Too late, Zoggie. I awarded another woman sole rights to sprezzatura.
You had your chance, but you muffed it.
Probably for the best. I take change slowly. I’m sure it’ll be a long time before I end up changing my username.