I have a porcellain doll of Scarlet O'Hara in mint conditon and I was wondering how much it would be worth?

Several factories made porcelain Scarlett's, One should be by World Dolls and they are the cheapest of the factory dolls ranging 9.00 to 15.00 in the box, Franklin Mint made a series of very nice Scarlett's the range from 24.00 to 50.00. Tonner also has made some they range to 69.00 and up. Look on the box for the maker and or on the back of the neck, for the mark. Hope this helps.