Girl's Names: Elegant, Crisp, timeless.

[swiftkick]

Also open to a unisex dimension to the name... & I know that above the above sounds like a perfume description!

Helen. Shortened to Nell.

Don't go unisex- it just means giving a girl a boy's name because nobody ever gives a boy a girl's name.

Clara / Claire

Grace
Helena
Sophia
Alice

Sophie

Jane.

Eva

Alexandra.

Jocelyn
Vivienne
Alexandra
Evelyn
Lydia

Are all tall, cool, elegant and intelligent women (in my head, anyway)

Sophia
Laura
Eleanor
Eliza / Elizabeth
Charlotte
Caroline
Alice
Sarah
Hannah
Esther
Lydia
Julia / Juliet
Anna
Emma
Helena
Georgina

Although not sure my suggestions are 'crisp'

A few years ago the baby name wizard ran a statistical search to find the most timeless names (ie the ones most immune to fashion but which remained steadily popular across the decades).

I can't remember what the boys name was but for girls it was Antonia.

Portia

Lettice (crispy!)

Anna

Tessa
Sophie
Emma
Alice
Charlotte

Alice
Grace
Juliette
Victoria
Jude
Eleanor
Elle
Clarissa
Bea
Belle

Juliet
Ellen
Helen
Lucy
Sarah

Olivia, Grace, Leonora.

Marcia

Grace
Lucy
Sophie
Emily

Caroline
Catherine
Verity

Elizabeth or Kate

Sonia

At first glance I thought you were considering the words in the title for names!

Claudia
Clara
Eliza
Susan
Juliet
Fiona
Esther
Eve

Aware that not all of them are quintessentially English names