Hi!

You can get a lot of branded bag with RM1.5k
The choices made merely depends on your mom's age and taste.
I would prefer:
1. Coach
2. Longchamp
3. Kate Spade
4. Braun Buffel
5. Bonia (you can consider; it is a Local brand marketting in Msia, Spore and Indonesia)

all of these brands can offer you a variety of good quality bags in genuine leather at around 1.5k

Would not recommend
1. Micheal Kors (it's more for youngster)