I created a little gift guide with some of my favorite items from shops where you can still buy a gift card for Christmas:
Vestiare Collective
A Pink Kelly Bag has been on my wishlist for quite some time. For a less expensive alternative you could choose this Pair of Dior Earrings.
Mytheresa
How about this pair of Gianvito Rossi Sandals (they are the perfect accessory for NYE).
Net-a-Porter
My selection would be this beautiful Max Mara Coat.
Luisaviaroma
Being so much in love with everything marble, I would get this uniqe bottle and a perfectly matching HAY Tray.
Edited
I already own a sweater from this line, so naturally I can suggest this T-Shirt out of Tommy Hilfigers collection.