Since you already brought it you will need to pay Bababebi for authentication but its very reasonable-do a google search for her website.I bought through Vestiaire collective who authenticates - do I need to do additional authentication? Similar to watches(a hobby I know well) there appear to be many really good fakes and I'd like to smile at the thoughts of a "forever" piece when we are old so I would like assurances.
She will then tell you what photos she needs to give a watertight authentication.
Its a wonderful bag In a beautiful leather and such a lovely gesture your post has been heartwarming in these troubled times.
My only concern is that if she normally wears neutral bags whether she will use this and love it as much as a true Neutral like Gold or even black.
I say this because I own 2 beautiful Celine bags in a gorgeous deep red-love the bags love the colour but even though the red works with everything I actually rarely reach for them.
When I brought my first 'nearly new' Hermes Bag I actually chose Gold (the only light coloured bag I own ) because it goes with everything-my second H purchase was black.
I'm not putting a damper on it but I really want her to love and wear the bag for years to come.