Vintage porcelain collectible doll, from the Christina Collection, made by Christina Verdi. It has blonde curly hair, blue eyes, and is dressed in a blue and gold Victorian-style gown with a large white feathered hat. Similar dolls are often listed as being from the 1990s or early 2000s.
This type of doll is generally considered a collector's item and not a toy. Most likely worth from the hundreds to thousands.