Miniature Portrait of a Young Girl, 19th Century

This is an exquisite miniature portrait of a young girl. From the nineteenth century and most probably American, set in a lovely oak frame. Unsigned.
The young girl's face is framed by tight curls and a lovely blue bow, and she sits in front of a stone column surrounded by climbing roses. 
The colours of this miniature are truly exceptional: gorgeous, bright blues and pinks, complemented by the bright red of her shawl. The portrait is elegant and refined, while at the same time having a lovely naif quality, which gives it its charm.
A perfect accent for any wall or table.
Sight dimensions: 4" high by 3.25" wide.