These are all amazing options. Thank you all for your time and advice!
I’m beginning to sway more between [name_f]Margot[/name_f] and [name_f]Edie[/name_f].
With [name_f]Edie[/name_f], I’d like a fuller name on her BC just to give her some choice when she is older.
[name_f]Edith[/name_f] I just don’t like but I’ve come across the name ‘Elodie’ which I feel could work nicely.
Update: the hubs has agreed on ‘Eden’ but we will call her [name_f]Edie[/name_f]!
Now for middle names 
Such a relief!
I have used two of your three options here 
All lovely, not much help sorry x
That’s a beautiful option! Congratulations!! 
I particularly like [name_f]Rose[/name_f] and [name_f]Edie[/name_f], and don’t mind [name_f]Margot[/name_f].
[name_f]Margot[/name_f] [name_f]Rose[/name_f] was on my shortlist for my girl. I love it but my mom said it read too much like maggot? idk. I personally still love it and so does my partner.
I love [name_f]Edie[/name_f], it’s adorable!
I love [name_f]Margot[/name_f]! [name_f]Rose[/name_f] I also adore but it is a bit simple and I see it more as a middle name. I do like [name_f]Edie[/name_f], but whenever I hear it, I always think of ED which could stand for e@ting dis0rd3r or even worse, er3ctil3 dy5functi0n. I knew an [name_f]Edith[/name_f] nn [name_f]Edie[/name_f] growing up but she was constantly teased for being called [name_f]Edie[/name_f] and I remember whenever someone asked for her name, she’d say [name_f]Edie[/name_f] and they would look so weirded out by it and sneer. It was really downgrading to her self esteem so eventually she just went by [name_f]Edith[/name_f]. I don’t want your daughter to have to go through that, so as much as you love the name [name_f]Edie[/name_f], for her sake I’d say to not use it. [name_u]Eden[/name_u] and [name_f]Elodie[/name_f] are also beautiful alternatives and it’s clear how they honor your grandmother! Good luck with your names!
Update: I didn’t notice that you’ve already considered [name_u]Eden[/name_u] and [name_f]Elodie[/name_f] whoops 
but I’m glad that you’re going with [name_u]Eden[/name_u] for the full name. I think that [name_u]Eden[/name_u] will be a good name to go by and then [name_f]Edie[/name_f] as a pet name and not a permanent nickname. I think [name_f]Edie[/name_f] should be to [name_u]Eden[/name_u] as [name_f]Em[/name_f] is to [name_f]Emma[/name_f], not said all the time but more as a cute name from friends and family. I like [name_u]Eden[/name_u] [name_f]Rose[/name_f], [name_u]Eden[/name_u] [name_f]Rosalie[/name_f], and [name_u]Eden[/name_u] [name_f]Margot[/name_f]!
I love Rose and Margot! Rose Margot would be stunning.
Eden is a beautiful name.
What about:
Eden Marigold
Eden Gabrielle
Eden Juniper
Eden Beatrice
Eden Penelope
Eden Josephine
Eden Frances
Eden Joy
Eden Charlotte
Eden Mirabelle
Eden Florence
Eden Jasmine
Eden Fern
Eden Victoria
Eden Glory
Eden Caroline
Eden Faith
Eden Annabelle
Eden Ruby
Eden Theodora
Eden Celeste
Eden Seraphina
Eden Rosalie
Eden Simone
Eden Margaret
Eden Therese
I like [name_f]Margot[/name_f] but I really prefer it spelled [name_f]Margo[/name_f]. Also I thing [name_m]Eddie[/name_m] is adorable for a nickname. I also am no a huge fan of [name_f]Edith[/name_f]. I think [name_m]Eddie[/name_m] could be short for [name_u]Eden[/name_u], or [name_f]Esther[/name_f], [name_f]Emilia[/name_f], [name_u]Evelyn[/name_u] [name_f]Delilah[/name_f].