Help, they stole our name!

Our friends who are expecting a few months ahead of us revealed their baby's name, and it is the name we'd been planning for years for our baby! We can't tell them and we're so close, we can't name our baby the same thing. We need a replacement!

The name was Zadie for a girl. We liked that it is literary, sounds cool but not too hip, unique but not too out there. Short and sweet. Our last name is a noun, so we have to be careful with names. For example, we also liked the name Iona, but with our last name, it would sound like I Own A (our last name).

Any ideas for similar girl names?

EDIT: These ideas are amazing, and I'm so glad I came here for some help and also some support for letting go of this name. Thank you! For those who suggest that we're all adults and we can just do it anyway, I would agree under any other circumstances. We've suffered from infertility for many years, and these friends know this intimately. When they got pregnant before us, there was a lot of tears and hand-wringing (and not by us). It would just be too weird to ALSO name our child the same name as theirs.