No, a gift and a tip are different things.
They can achieve the same thing, I guess, but a gift is given just because you want to give something. A tip is to be remembered as a good client and to reward great service.
Frankly, most providers prefer cash to presents. The odds of you buying something she actually wants are pretty slim. If you buy a gift, get something light-hearted and inexpensive, yet nice. I used to have hints on my web site - I listed Godiva chocolates as one of the things I loved in life. That way, I got lots of Godiva chocolates. These are affordable, as you can buy a variety of box sizes, and they are nice to give because they're pretty. Clients who get a kick out of giving gifts were satisfied, and I had something I liked.
Gifts aren't that important, though. If you give a gift, it's sweet, but I don't think many providers really care and we feel TERRIBLE when you buy something we don't like. We feel bad that you've wasted the money. At least, I felt kinda guilty.