[name]Love[/name] [name]Calla[/name] and especially [name]Diana[/name]. [name]Serena[/name] is ok.
I like
[name]Beatrice[/name]
[name]Elizabeth[/name]
[name]Eleanor[/name]
[name]Victoria[/name]
[name]Virginia[/name]
[name]Briony[/name]
[name]Helena[/name]
[name]Annabel[/name]
[name]Nina[/name]
[name]Lilia[/name]
[name]Fiona[/name]
[name]Gwendolyn[/name]
[name]Julia[/name]
[name]Marianne[/name]
I really like [name]Diana[/name] and [name]Serena[/name], [name]Calla[/name] is NMS though.
[name]Alexandra[/name]/[name]Alessandra[/name]
[name]Beatrice[/name]
[name]Isabelle[/name]/[name]Isabella[/name]
[name]Camille[/name]/[name]Camilla[/name]
[name]Claire[/name]
[name]Christiana[/name]
[name]Elisabeth[/name]
[name]Alice[/name]
[name]Edith[/name]
[name]Emma[/name]
[name]Catherine[/name]
[name]Rose[/name]
[name]Rachel[/name]
[name]Rebecca[/name]
[name]Vivienne[/name]
[name]Valentina[/name]
[name]Anne[/name]/[name]Anna[/name]
[name]Marguerite[/name]
[name]Amelia[/name]/[name]Amelie[/name]
[name]Victoria[/name]/[name]Vittoria[/name]
[name]Melisande[/name]
[name]Madeleine[/name]
[name]Vienna[/name]
[name]Siena[/name]
[name]Sophia[/name]
[name]Nathalie[/name]
[name]Geneva[/name]
[name]Francesca[/name]
[name]Florence[/name]
[name]Lyra[/name]
[name]Lucille[/name]/[name]Lucienne[/name]/[name]Lucia[/name]
[name]Veronique[/name]
[name]Anastasia[/name]
[name]Anais[/name]
[name]Isolde[/name]
[name]Juliette[/name]
[name]Julia[/name]/[name]Julianna[/name]
[name]Meredith[/name]
[name]Arabella[/name]
Viotet
[name]Imogen[/name]
[name]Magdelene[/name]
[name]Gwyneth[/name]
[name]Elena[/name]
[name]Tatiana[/name]
[name]Samantha[/name]
[name]Charlotte[/name]
[name]Sylvie[/name]
[name]Grace[/name]
[name]Veronica[/name]
[name]Nicoletta[/name]
[name]Angelina[/name]
[name]Marceline[/name]
[name]Caroline[/name]
[name]Giselle[/name]
[name]Norah[/name]
[name]Amara[/name]
[name]Mira[/name]
[name]Aria[/name]
thanks a lot! 
happy to get your feedback.
anyone else?
[name]Calla[/name] fits your criteria without being predictable. Unlike pp, I wouldn’t suggest or choose names in the Top 100, because while many of them fit the description, when a name becomes so common, it doesn’t have quite the zest. [name]Serena[/name] is very pretty. I’m not a [name]Diana[/name] fan. It seems a little tired, still, to fit your description.
Names that come to mind for me are: [name]Camille[/name], [name]Meredith[/name], [name]Maeve[/name], [name]Annabel[/name], [name]Eleanor[/name], [name]Phoebe[/name], [name]Juliette[/name], [name]Francesca[/name], [name]Bridget[/name], [name]Eloise[/name], [name]Dahlia[/name], [name]Johanna[/name], [name]Elena[/name], [name]Claudia[/name], [name]Tabitha[/name], [name]Elise[/name], [name]Greta[/name], [name]Tess[/name], [name]Beatrice[/name], [name]Mae[/name], [name]Corinne[/name]
My perception is that a lot of the upper-class sounding names are those that are traditional - which often means that they are not “uncommon.” That being said, I do think that there are a lot of good suggestions already on the thread. A few that I think might fit that category are
[name]Maura[/name]
[name]Andrea[/name]
[name]Lauren[/name]
[name]Nora[/name]
[name]Eloise[/name]
[name]Eleanor[/name]
[name]Bernadette[/name]
[name]Margot[/name]
[name]Margaret[/name]
I like all three of your listed options ok.
[name]Diana[/name] is my favorite, followed by [name]Serena[/name]. Might I add:
[name]Calista[/name]
[name]Celeste[/name]
[name]Delphine[/name]
[name]Laura[/name]
[name]Laurel[/name]
thank you all! yes i love lots of names that you suggest.
anyone else?
I do not think that [name]Serena[/name] or [name]Calla[/name] fit the requirements you mention [name]IMO[/name]. [name]How[/name] about:
[name]Julia[/name]
[name]Elizabeth[/name]
[name]Caroline[/name]
[name]Calla[/name] is nice but I don’t really like the others.
[name]Sienna[/name]
[name]Darcy[/name]
[name]Abigail[/name]
[name]Florence[/name]
[name]Charlotte[/name]
[name]Pearl[/name]
[name]Amelia[/name]
[name]Louisa[/name]
[name]Olivia[/name]
[name]Isla[/name]
I think [name]Calla[/name] is gorgeous! [name]Diana[/name] does sound elegant to me. [name]Serena[/name] not so much. Some other names that are Elegant and [name]Lovely[/name] are
[name]Simonette[/name]
[name]Luciana[/name]
[name]Margaux[/name]
[name]Francine[/name]
[name]Millicent[/name]
[name]Octavia[/name]
[name]Annastazia[/name]
[name]Olympia[/name]
[name]Perdita[/name]
[name]Philomina[/name]
[name]Jeanette[/name]
[name]Priscilla[/name]
[name]Marguerite[/name]
[name]Valentina[/name]
[name]Prudence[/name]
[name]Lynnette[/name]
[name]Philippa[/name]