Mazarine

Feeling blue...

This is a French name which is subtle but elegant with multiple potential nicknames thus giving the ability to really play around with the name itself. Mazarine is a deep blue colour. It is also used as a first name in honour of Cardinal Mazarin, a leader of France in the 17th century. As a first name, Mazarine is as charming as it is unusual thus making it a really unique baby name. 

Cordelia

Here's one I'd love to see rising in popularity...

Cordelia is a character in Shakespeare's King Lear so this name literally oozes with class and sophistication. She is Lear's youngest and favourite daughter. If classic theatre and literature isn't really your thing then there's also the wonderful Cordelia Chase from Buffy The Vampire Slayer. The name can be shortened to Delia, Lia, Cordy, Cora etc. This name has a really rich feeling with plenty of potential to play around with it in terms of nicknames. It means 'daughter of the sea'

In the novel Anne of Green Gables she says the name Cordelia is a 'perfectly elegant name' and it could be perfect for your child.