The value of your Barbie doll depends on a few different things. The age, the condition (new in box, never removed from box, etc.) Is it a Limited Edition doll? Has it been damaged or altered in any way? All Barbies are worth something, but whether or not yours is a high value doll, it would be a good idea to do research on the internet to find out more.
I have a Platinum Bubble hair cut Barbie with late 1950's on the buttock of her trunk , She is still in her red swim suit, and the stand that holds her up in the original box, with a little catalog that came with accessories and clothes you could order. What would this be worth today?